at my old apartment, i assumed my roommate was asleep when I got home late from the bar. His room was right across the hall from mine. A girl I knew came over, and I guess didn't shut my bedroom door all the way, but I didn't notice it because no lights were on anywhere. Anyway, she's like, reverse cowgirl I guess (maybe too much info, but pertinent), with her head down. I was kind of sitting up a little. Anyway, my roommate comes home, he'd actually been out all night. So she's bouncing her ass essentially right in my face, and suddenly I see his big frame fill the door way and just stare at us for what felt like a little too long. She never looks up at this point, so he goes into his room and shuts the door. I never told her and he never mentioned it to me.