One of my favorite floor calls I ever took.
Seat 10 is all in, action on seat 1. I am summoned for a clock call. Seat 10 is leaning behind the dealer screaming at seat 1 the whole time.
I inform him that the clock will reset everytime he speaks. About 20 seconds later, he smart mouths (not profane, just being a dick) the 1 seat. I reset the clock. By the look on his face, I'm pretty surprised he didn't come across the table at me.