For a computer programming class, I sat directly across from someone, and our computers were facing away from each other.

For a computer programming class, I sat directly across from someone, and our computers were facing away from each other. A little while into the class, she got up to leave the room. I reached between our computers and switched the inputs for the keyboards. She came back and started typing and immediately got a frustrated look on her face. She called the teacher over and explained that no matter what she typed, nothing would happen. The teacher tried everything. By this time I was hiding behind my monitor and quaking red-faced. I started to type, Leave me alone! They both jumped back, silenced. Whaaa?? the teacher blubbered. Then I typed, I said leave me alone! The kid got really upset. I didn't do anything to it, I swear! It was all I could do to keep from laughing out loud. The conversation between them and HAL 2000 went on for an amazing five minutes. Me: Don't touch me! Her: I'm sorry, I didn't mean to hit your keys that hard. Me: Who do you think you are anyway?! Etc. Finally, I couldn't contain myself any longer and fell out of my chair laughing. After they had realized what I had done, they both turned beet red. Funny, I never got more than a C- in that class.