I have a story although it's missing the drugs/alcohol:

I was in high school and a friend an I walked in on another friend in a room in the back of the school. Some nasty bitch was riding on him and moaning. We just noped right out and left the school. Two or three days later some cops came into my classroom and escorted me to the office. They asked me about 'the incident' and I asked 'what incident? They told me 'The sexual assualt incident that you walked in on". I told them that me and my friend walked in on my friend having sex with a girl in 'that room'. Both my friend (that witnessed the boning) and I told the officers that it was very clearly consensual. She was riding on top of him grinding and moaning n' shit.

Apparently she had told one of her friends that X had raped her in 'that room'.

A few days later there was a story in the local newspaper that said "Local highschool student accused of rape in school!". This was a cliche very small town where everyone knows everyone. He was pretty much ruined from then on. My fellow witness and I testified exactly what we saw, and the girl even went back on what she said, saying she told her friend so she could get more attention. He was acquitted. It fucking ruined him though. Thanks to the newspaper, people pretty much talked about him like he was a rapist.

Fucking unreal. Could happen to anyone and it makes me sick.