This form of revenge was not only petty, but it was also knotty. Sometimes, when you're in a public performance setting like a movie theater or a play, people are unintentionally disruptive and annoying in a way that can ruin the whole experience for others. We know this phenomenon all too well, from the folks who text after they have been told to silence their cell phones to the people who have absolutely no concept of personal space. Like it or not, there are unspoken rules of how to behave i…