Have you ever walked out of a movie theatre?

I've only ever walked out of a theater once, and it was due to the movie being a huge disappointment and technical problems. I went to see Black Swan with my boyfriend and we were both really disliked it and found it unpleasant to watch (awkward sex scenes and upsetting self-mutilation scenes), but we were going to sit through it, but then the film reel broke and we knew we would have to just sit there for like 20 minutes before they even got the movie back up and running, so we left.