One of the assistant coaches set his thermal mug of coffee down on the bench seat in the dugout at the bottom of the second inning of play (we were the home team) with the admonition, "don't spill my coffee."
These are five and six year old girls. They climb up on the ledges, climb the chainlink "walls" of the dugout, and otherwise do NOT stay still for more than 3 seconds at a time. I was busy keeping my lineup going, making sure the girls got helmets on and ready to bat. All of a sudden, at the end of the inning, one of the girls... you guessed it, knocked over the coffee. It spilled all over the place, but mostly in my daughter's "street" shoes (she wears cleats when playing, but her regular shoes were under her seat in the dugout), coffee also spilled all over my daughter's glove, etc. etc. etc.
So in addition to trying to get the catcher's gear on one of the girls, I had to wipe down K's glove, and while I was doing that, Mr. Coffee comes back in and starts complaining about how his coffee got spilled.
It took everything in my being not to yell, "You were the [insert curseword here]
The stupid, it hurts.