A friend of mine worked for the state at a very large office building campus. The lines in the cafeteria at lunchtime were very long and he'd get bored. So occasionally, he'd suddenly leap out of line with a whoop, grab his backside as if he'd been goosed, spin around, and shriek at the person behind him, "What do you think you're doing?! Keep your hands to yourself!" And then he'd stand sideways in the line, close to the person in front of him, glancing warily at the poor innocent person behind, while everyone stared.