15 people share times they immediately didn't like someone based on a first impression.

We all know we shouldn't judge a book by its cover. But sometimes the first few sentences of a book are enough for us to know it's not a fit.

While most people deserve a fair shake before being mentally discarded as incompatible for friendship (or even a friendly coworker relationship), some people show their true colors loud and clear early on, and it's valid to take that cue.

In a popular Ask Reddit thread, people shared times they knew they didn't like someone after hearing them speak for a minute or less, and hoo boy, it's a ride.

1. From Barquebe:

New guy at work, first coffee break he started complaining about his ex who had full custody of the kids for some unknowable reason and also how he’d like to slash her throat with a rusty knife.

Nice to meet you too, don’t think I’ll be taking breaks with you.

2. From tinkrman:

Asked me 'do you mind if smoke?'. Then proceeded to take out a m*th pipe.

3. From SignificantLow4405:

The quiet boy at school sat next to me and told me how hard he felt when he took a sh*t and how many times he ej*culated that way. I never sat next to him again.

4. From WanderingProdigy:

New guy at work. Super fake by being overly excited and super overly comfortable with everyone in the first minute. He's all 'mami' this and 'papi' that to everyone and very overly touchy (we were almost all Hispanics and everyone was uncomfortable).

First phone call of the day, he hangs up cursing and taking it super personally that someone hung up on him (daily occurrence in customer service).

After about 6 months, I put in my 2 weeks notice solely because I couldn't work next to or with him anymore (he would also get overly gossipy and personal). My boss rejected my notice and transferred him.

He couldn't stand the guy either. No one could.

5. From INYONOOS1:

Literally last night, was at a local pool comp and went to introduce myself to my second round opponent.

We shake hands and his first words to me are “weak f*cking handshake bro” followed by “I hope you like banter mate” then proceeded to talk s**t about every aspect of my game.

The worst part was he was actually good at pool so it just seems like he was generally a cunt. Some of his other opponents got it a lot worse than I did as well.

Highlight of the night was when the comp host basically yelled in his face “everyone in this room f**king hates you” which received a round of applause. He didn’t seem to understand why that was.

“Just banter bro” ?

6. From dekogeko:

We had just moved into a new house. An older gentleman - he was 65 and I was 35 at the time - came across the street towards me and stuck out his hand. I shook it and he said 'We love new neighbours! As long as they're white!'

7. From WakingOwl1:

The new neighbor who, after introducing himself pointed to his chest and says, “ instant asshole just add beer, that’s what the family says.” Nah we’re not gonna be neighbor pals. F**k you Irv you were an a**hole even without beer.

8. From IamAWorldChampionAMA:

Asked a guy what he does at a business networking event.

'Well I'm a Chiropractor but looking to get out.'

'How come?'

'All these me too accusations. In another State I had 3 of them. Good thing none of them went to the bar.'

9. From Lumisateessa:

'There are different levels to being a psychic, I'm on the purple level so I can talk to the dead'. said a new employee at my previous job.

Nope.

10. From MarcusColwell:

New guy started at my job, we were outside smoking on first break. Keep in mind I have never met nor spoken to this dude in my life.

He walks up, lights up his cigarette and says 'you know, I think my severe arachnophobia has transformed into an arachnophilia.

I've been watching a lot of spider hentai while masturbating.' Then he then began to describe his new waifu pillow he bought. Her name and his plans to marry her. I was speechless.

11. From porkchopcindy:

Meet Your Teacher day before my kiddo started kindergarten and this other parent literally bragged that her kid was completely illiterate, couldn't stand being read to, and she hated reading too.

12. From fdf_akd:

He learned I'm a physicist, and immediately started talking about infinite energy.

13. From MrsJuliusPepperwood:

'I hate that our boss is a chick. B**ches make the worst bosses.'

Lunch break of his first day on the job.

14. From zazileya:

Started at a new job, went for a team dinner and the very first thing he did was talk about how bad the dating scene was in the city and how 'ugly' all the women are.

Dating scene was absolutely fine btw, I pull out of the conversation and then he just continues to ramble on about how smart he is vs everyone else...safe to say I've been avoiding him since.

15. From UptownShenanigans:

I met one of my new colleagues at a barbecue that was being hosted by our work. I (a man) drove with another coworker (a woman and a friend of mine), so we arrived together.

When I was alone for a moment this guy, whom I’ve never spoken to before, comes up next to me and says “yo dude…you hittin’ that?” gestures to my friend I said “no, and she also has a boyfriend.”

He very exaggeratedly says “DAMN”

Yada yada he got fired 2 years later for sexually harassing an intern.