Talking with colleagues earlier about dealing with a cocky intern:

"Ah, I had one of those last year. I told him to make sure when using the find command, always use the -delete flag to clear up any temporary files it creates while it's searching."

"Man, that's harsh. Did that take him down a peg?"

"Nah, not at all, but he never spoke to me again after that, so I'm calling it a win."