What's the dumbest reason why you were fired from a job?

I did janitorial work and the place I got contracted out to fired me for charging my ipod on a manager's computer. They told me that they considered it to be a security breech. I would have expected them to give me a slap on the wrist or a warning but not fire me! But sh*t happens, we all make mistakes. What's the dumbest reason why you were fired from a job?