In my server, I'd have a bot chase him around. Then, I'd respawn him, stun him, nudify him, delete him, kick him, if he returns, I'd do it several more times, ommiting the kick part and making it a healthy banning. All the while, I would tell him he should grow up and learn to play instead of trying to be the funny-guy. The class clown of sorts. If someone like this returns later and apologizes, I let them have fun and be free... However, I still watch them to make sure they dont do anything shady or stupid.
What does everyone else do?