One of my personal favourites was the coach several years ago who had been warned on several occasions to sit down and keep it shut.
There is less that 1 minute to go, his team is up by 2 and his star player gets his fifth foul with a charge (my partner called it, but from where I was it was a good one). The coach goes balastic that "we" have fouled his player out. The F word flies along with a few other nicities.
I'm the trail and standing in front of his bench, so I immediately toss him. His reaction, and I quote: "You can't toss me, I've only got one T, you have to get 2 before you are ejected."
So he promptly gets his second from me, the other team hits 3 out of the 4 free throws and then scores a 3 after being given possession.
The other team ended up winning by 5. poetic justice