(or that have walked in on you)
Was sitting in the office of the high school library I work in when a student and one of the teachers barged in without so much as an excuse me. They were chewing the kid out for getting caught smoking pot. I took a hint and left my office. Didn't even get a email apologizing for the disruption.
Also, one night my crowded train home broke down and I had to witness a woman telling her "whipped" boyfriend she was breaking up with him. They could still be friends she said. Friends? The poor guy whimpered. And on it went...
And you?