What's the rudest thing a guest has ever done in your home?

About 4 years ago me and my girlfriend had a few people over for a little party in our appartment. We spent a few hours drinking and listening to music, and eventually people start filtering out, leaving just my girlfriend, myself, a friend that was staying with us, and the upstairs neighbors (2 girls that we were going to school with). We move to the bedroom with everyone, smoke some weed, and watch some funny videos on youtube.

This is when things go terrible wrong. Suddenly one of the neighbors gets up and leaves, and comes back a few minutes later. We we're all high and having fun so Ono one thought anything of it at the time. Fast forward about an hour and everyone leaves, and we are going to bed. I lie down and touch something wet around my pillow. I get up and turn the lights on, and to my horror, see blood where my hand touched. The neighbor had started her period, gone upstairs, changed her pants and put on a pad, and came back down to our appartment without telling us anything.

I know talking about periods is a weird topic for some people, but she didn't tell us, or offer to help us clean/replace our mattress. When questioned about it she denied everything, but it was where she was setting, and her roommate told us she was definitely on her period. I told her to never come into our appartment, or talk to me again.

/r/AskReddit Thread