"I once had a guest shave his entire beard at a party. It was the first time me or my roommate met him. He had a beard, and then went and used my roommates razor to shave it off. "
"I once had a party at my mums flat while she was gone (with her permission). One of my less close friends begged me to let her invite her boyfriend and I agreed. Well, the boyfriend puked on my mums balcony and never told anyone. It was also January so we discovered the puke two months later when it started to melt. I asked around and was told it was him by two people who saw him puke. I have no idea why they didn't let me know then."
...the amount of ignorance in your comment speaks for itself.