This happened during our last performance.
I'm one of the detectives (Actually, I'm the head detective of the CLE franchise) and we have this bit where we ask one of the audience members to reenact the crime for us. Unbeknownst to us at the time, the guy we picked was a bit of a [BLEEP] and probably drunk to boot. He gave himself a problematic name -- and he's proud of it. Usually if that's the case, the supervisor recommends we make them say their name and put the onus on them.
But this twit really likes how uncomfortable his name sounds. Unfortunately for him, I'm a rapid-fire improviser.
Him: I'm Testicle Steve! Know why they call me 'Testicle Steve'?!
Me: 'Cause you're lacking the balls to use your real name?
*mic drop* And the crowd goes wild...