This is an old video, but we've never seen it before and there's never really a bad time to laugh at Gregg Popovich doing his curmudgeon routine, especially when it's kids who are on the receiving end.
Here we see Pop getting ready to drop some coaching knowledge on a few eager basketball campers, but first he politely asks them what their names are. "I'll forget your names, but I thought it was polite to at least ask, or start that way," he says. "Because I don't really give a shit what your names are, so..."
[Reddit]