How about pulling into your favorite spot loaded with nice structure and has a big fish or two in it only to snag up the first damn cast. If I am alone, I will cut my line, retie, fish the area and come back for my plug later. It still really ticks me off.
If I have clients, we will bring his rod to the front of the boat so I can hold it (back of boat is drifting past structure first) while the rest of them pound the spot. I freespool as we drfit keeping the line out of harm's way until area is fished. The guy who is snagged is placed in the "penalty box" for the casting infraction.
We usually get a chuckle out of it.