15 people share the worst thing they've seen happen at a bachelor/bachelorette party.

The whole idea of a bachelor/bachelorette party is to get certain wild behaviors "out of your system" before committing to a life of monogamy and domesticity. It's a good idea in theory. You basically take someone in the anxiety-ridden lead-up to their wedding, ply them with alcohol, tempt them with scantily clad strippers, and present them with opportunities to screw up their marriage before it even begins?! All while their friends and maybe some family members are in attendance... what could possibly go wrong?!?

In a popular Reddit thread, people who have worked at or attended bachelor/bachelorette parties are sharing the worst party fails they've ever witnessed.

Here are 15 stories of bachelor/ette parties that went off-the-rails:

1. "The night had just started."

From potato_ships:

I was doing security at a club and a bachelorette party showed up all wearing t shirts that said "Tribe" or something on them. They looked like they hadn't been out in a long time to the club, if ever, and quickly all got plastered. One of them stumbled into me, trying to make it to the bathroom, and I offered to help her get there, since she could barely walk. She proceeded to let out an exuberant scream and flash her boobs, before promptly puking all over me and passing out. She fell backwards, breaking the first bathroom stall door in, and swinging it wide open, exposing a screaming girl pooping. It was like 11 Pm, the night had just started.