We all have an impact on our environment constantly in ways we usually don't realize—unless we're high enough to stop and think about it. But sometimes, our small actions can trigger a series of reactions that ultimately have major consequences. It's called the "butterfly effect" and, unlike a butterfly, it's not always pretty.Someone asked Reddit: "what's the worst butterfly effect that you've set off whether on purpose or on accident?" These people share stories of times the butterfly effect had terrible consequences:1.) From SIFremi: Me spotting a weird light outside my window led to me becoming homeless a couple years later Saw a weird light outside our house one night -> told mom -> it turned out to be my dad calling his mistress -> divorce -> mom gets sole custody -> some time passes -> my mom is ready to move on and reconnects with an old boyfriend -> they decide to go on a trip together -> he and my mom end up in a car accident -> she dies -> I'm just about to turn 18 so I can't go into foster care and my extended family takes her shit and ditches me -> homeless It's really weird to think of it this way,,, I do wonder what would have happened to me, or to her, if something in there had gone differently. 2.) From Economy_Cactus: One night I decided to get drunk instead of studying in college. Went out with a few friends who I convinced to go out with us. One friend meets a girl that he ends up falling in love with. So he moves out of my buddies apartment leaving a spot open the next year that they need to have subleased. Ends up being a girl who wants to get in this apartment, I see her a lot since she lives with my buddies. I start dating her. It leads to the worst most destructive manipulative two years of my life where she leaves me two months before the wedding for another man and took all my money. Had to move back home and start my life over living with my parents. All because I wanted to get drinks one night. 3.) From adeiner: Agreed I have a foursome with my then-boyfriend and two people he didn’t know but I knew. Didn’t go well, he ended up leaving me for them (throuples are wild), I moved across the country for a job I probably would have turned down if I weren’t single, he ended up breaking up their four-year relationship. Because of one weird drunken night I started a different career, he ended what could have been a marriage, one of the guys is now engaged to someone else and the fourth person deleted all social media and got fat. 4.) From itsfish20: Texted my bat shit crazy ex that we should hookup sometime cause I was home alone and drunk/stoned. Well she responded a few minutes later saying sure and she took the train up to my place. We hooked up all night, multiple times and not gonna lie it was a ton of fun! That was a Friday night, on Monday she texted me she was pregnant and sent me a pic of an ultrasound and three positive pregnancy tests. Well I called her out on her shit, that was a blatant lie and there was no way she was pregnant that soon and it would not show up on a test that quick and I wore protection and was too drunk to finish each time. Well this was her ploy to get back with me and it backfired hard on her and sent her into this downward spiral and she ended up in a mental ward for a few days. 5.) From NO_PRND: I sent my wife's lovers chat log and hotel receipts to his mother. (Thanks Facebook) They live 2,000 miles from us and after doing some digging into him when I found out I realize that his mother was supporting him and his wife and three children(he's 44 years old). His mom kicked him out, but let is wife and kids stay. His wife divorced him. I divorced my wife, now he's living in his car. I'm not even upset about it. f*** my wife, f*** your life. 6.) From theironfist29: I'm a big fan of this theory as i believe a lot of major incidents can be traced back to one defining choice or action. A bad one that jumps out to the front of my brain; I was studying in college (pre university in the UK), when a class mate suggested i joined a sort of social networking website dedicated to meeting people who will be going to the same university as you. I joined and became friends with a really lovely girl. We got talking and everything about her ticked all the right boxes (or at-least to 19 year old me). Fast forward a few months. We are both at uni and dating - we have our ups and down but they were very extreme ups and downs. I hated my course i was on (product design) and applied to another university to study architecture (something i always wanted to do) but i stupidly got cold feet as it meant i would have to move away and i didn't want to leave her so i rejected their offer. we broke up shortly after and had a very messy and public breakup along with having to see her get with her friend that i sort of knew had a thing for her, along with rumours going round that i hit her (which i didn't). So I'm 99.99% if i never had that conversation with my class mate, i wouldn't have joined that website, i wouldn't have met my ex. I would have gone to a different university and my life would be very different right now. Thats mad. 7.) From The_Catz_Pajamas: I have a few of these incidents, but this one in particular really shifted my life in a pretty big way. I used to work for an MLM when I was 19. I was doing really well within the organization and I had a decent trajectory in terms of getting enough people on my "team", which would have allowed me to earn 6 figures. I was stoked. Anyway, one night me and a handful of coworkers were at a bar drinking and playing Golden Tee (the bar never carded me so I had free reign there). One of my coworkers runs up to me and asks me if he could borrow my car so he and another co-worker could pick up beer at the store. To be honest, I have no idea what their end game was, but I had this really sweet 1991 Toyota MR2 at the time and I loved it. So, I asked him if he was drunk and he assured me he wasn't. So, I gave him my keys. Cut scene to like 3 minutes later and someone comes running in to the bar from outside screaming "OMG they got in to a wreck!!!" So I run outside and my coworker had managed to wrap my fucking car around a light pole in the bar parking lot. There were two people in my car, which left two head imprints in my windshield. They fucking totaled my car. Unfortunately for me, I only had liability insurance and my coworker was broke. So, I was fucked. No car. I couldn't get to work. Now, mind you, this was in 1999 so there were no Uber's or anything and because I was having a hard time getting to work, I started running out of money. Finally, I had lost all my motivation to move forward with that job and found myself car-less, job-less, and living in a friend's basement. Two months later, I joined the Air Force and it COMPLETELY changed my life's trajectory. All because I trusted some dip shit with my car keys for 3 minutes. Crazy. 8.) From littlelostsober: I called 911 to get a homeless guy medical help but they ended up arresting him instead and threatened to arrest me for making a false police report. I still feel bad they arrested him I was just trying to help the guy out. I didn't get arrested but my boss was pissed at me. 9.) From jerrygergichsmith: I told my friend that there were some serious suspicions that his girlfriend was cheating on him which turned out to be true. Turns out buddy’s ex took it out on her former college roommate and destroyed their friendship because she thought the roommate was the one who ratted her out. The friend wound up not really talking to much of her friend group from College at all as a result, and the first person who reached out to her... pitched an MLM she accepted. So now she’s all in on an MLM because I told my friend about his girlfriend cheating. 10.) From kweeche: When I was 21 I dropped out of college and waited tables for a bit. I had offers from two different restaurants. I waited tables for about a year at a big chain restaurant. I started picking up bartending shifts, then was made shift leader, manager, and finally assistant general manager. I dated a few waitresses, and ended up marrying one. The marriage lasted 13 months and ruined my confidence. I went back to waiting tables and didn't date for 5 years. I barely got laid in that time. 15 years later I finally start trying to date again and fail miserably. 5 years after that I meet my wonderful wife and we have a great 4 year old now. I don't know what would have happened had I taken the other job, but I probably wouldn't have spent 20 years alone. I still don't know how to be in a relationship, but I'm trying. 11.) From Wedidntstartthef1re: Pressured a guy in his 50s to do an assault course race so I could get a $10 discount. (If we had 5 people it is cheaper). He eventually gave in. Made it to the 5th mile, slipped and tore his cruciate ligament. He couldn't work so stayed at home with his wife, he started arguing with her a lot. So much they decided to separate and get divorced. He moved out, his adult children hated him and he rented a house from a mutual friend. A few months later our mutual friend calls me to let me know that 50s guy had poorly screenshotted mutual friends photos from facebook and used them as his own on tinder. All well and got except he was a 5'2, 50 year old latino guy. Mutual friend was 6 foot 30 year old white guy. Usually my mutual friend wouldnt be that bothered, except he found out from his wife as one of her friends saw his photo on tinder, but with latino guys name instead. They were also about to get married so both were really angry. Mutual friend tried to ring latino guy. Latino guy hung up when he realised he was busted. Long story short my mutual friend evicted him. Yeah My bad 12.) From Vert1cus: caused my moms boyfriend to be arrested by eating cookie dough and then blaming him for it, which caused my mother to get pissed off and make him go out to go get more but recently one of the taillights died and so he got pulled over to get a fix it ticket which california loves to give out but when they ran his id they found a warrant out for his arrest because when he worked at a hospital he stole a few of the computers and thus he was arrested and i never say him again. 13.) From swishywashy: This kid used to bully me in school so I complained to my mom who took it up with the principal. Apparently this wasn't the first complaint and he had been kicked out of his previous school for the same reason. However, it turns out, that he's my dad's boss' kid and the dad for some weird ass reason decides to "take revenge" by stopping my dad's promotion multiple times. Dad takes up another job but he has to move to another city while we stay back because stability. Dad has an extramarital affair there, mom finds out, it's an absolute shit show in my house for the next three years. My parents hate each others guts but refuse to divorce because codependency and societal pressure. I spend those three years breaking up their fights and trying to talk reason into their thick skulls while also managing the household and my studies. Anyway I've got depression and anxiety now, all because I couldn't suck up and take some bullying as a kid lmao 14.) From The_Egomaniac: Asking out my ex. I knew she would say yes, and later she would break up with me. I just ignored the negatives as anxious me having negative thoughts. But all that happened. I was broken so much that I dropped out college, depressed, confused, suicidal,... Now I've recovered. On a brighter note, here are some stories about times the butterfly effect led to something positive: 15.) From notgoodwithyourname: I decided to go to a strip club after work one day at like 5pm on a Friday by myself because I was a creep and unhappy I guess. I get in and i think there was like 2 other patrons there. I sat down in between two dancers and the one on my left said hi because she was bored. We ended up talking and immediately hit it off. She's crazy smart, beautiful, and funny. We end up getting a dance because like I said I'm a creep. Afterwards when we finish she jokes that this will be a funny story to tell our grandkids. Fast forward I guess 6 years now, she graduated college and has an amazing job. We've been married for 3 years and just bought a house. No kids yet, but life is really good and I'm really happy. We both kind of saved each other from where we were heading. 16.) From Sarah3di94: Told my older sister and her friend that I can predict the future (as a joke). They thought it would be fun to know their future I predicted for my sister's friend that she will loose alot of weight (she was obese) and that she will ditch her boyfriend because she will think she can do better now and then marry a British guy. She's Lebanese and never been to Britain. Told my sister that she will immigrate to Canada, meet a guy who's family used to live in our hometown and then they will get married Fast forward few years, my sister's friend did a Gastric bypass surgery and lost ALOT of weight, dumped her boyfriend and met a British guy teaching in the same school she's in then got married. My sister applied to Canada and got the immigration. Met a guy who's family lived in the same hometown as we used to and then they got married. To this day I wonder if I did predict the future or if it was just an effect of what I said to them. 17.) From Mediumrawr14: When I was younger I absolutely hated school. Zero interest in it. I ended up switching schools in sixth grade and knew no one there. I broke my leg really bad had to be on crutches for six and a half months during winter. I gained a ton of weight and I started to get bullied in school. I had no friends, so my mom got me into reading. I found out I LOVE books and I was actually pretty good at school when I tried. I’m still chunky but I’m in medical school now, which for sure wouldn’t have happened otherwise.