At some guy's place for his 18th birthday, for some reason his family (father, mother, little brother and grandfather) decided to stay home on the first floor while the party was at ground level.
Fastforward to 3am, I see this skinny guy chugging on every drink he sees, problem is more and more people started using cups as ashtrays as the party went on, this guy just pushes someone out of his way, grabs an ashtray-cup and drinks it down in one sip, at the time it was funny to see and we were too drunk to care about what would happen to his bowels.
An hour later I see the same guy in the kitchen on a chair shitting himself and vomiting over his shoulders while some people around him try to wake him up, they succeed, he wakes up (still full of shit and vomit) and says something unintelligible as he goes for the first floor (there was a second bathroom there so it kind of made sense since the other one was full at the time). I guess nobody really wanted to take care of a guy full of shit and vomit because no one went with him to see if he gets there.
Half an hour passes and some people start to freak out because they can't find the guy anywhere and in his state he couldve done bad shits, last news we had from him was when he went to the first floor's bathroom, problem is he never managed to get to the bathroom by himself and instead ended up in the grandfather's bed (no one could even think about the possibility of him being there) with the grandfather himself sleeping in this bed (who at the time thought the guy was a girl so he let it slide, but just before the smell kicked in), they decided to let him sleep here and the grandfather had to go to another room for the night, the morning after the party everyone felt weird because we all wanted to talk about what happened but he was also there so we all looked at each other like 'bruh did this really happen?' for an hour.
I wasn't a friend of his but from what I've heard he completely changed of friends and never drank again, the lesson of the story is probably never fucking drink a cup filled with ash and cigarettes butts.