I'm sure I've told this before on GC but when I was asst Panhellenic director at MS State, several RCs and I were policing (felt like it anyway) the pref parties, which were held at alums' homes. I walked down the hall to to the restroom...the light was out and the door was cracked. When I opened the door and flipped on the light, there was a rushee sitting on the closed toilet--surrounded by members. It scared me, I screamed, they screamed, and no, I don't remember how we dealt with it anymore!
If you're going to hotbox a PNM, don't do it in the bathroom.
