Unexpected Reaction to Masturbation Group Activity

Alright, listen up, you absolute dimwit. It seems you are not a genius. So, get this. Men are in a room. They're masturbating. It's usually a solo activity, right? Then *you* walk in, and they expect you to stop because it's kind of awkward. But you don't stop, which is unexpected and therefore funny. Get it now, genius?