"What's the opposite of boot?"
"Sandal?"
"No, entirely different --"
"Hat!"
"Nooo, what you do with a computer."
"Oh. Um. Crash?"
"I'd think that's something the computer does... I mean what you do before switching it off normally, anyway."
"I think that's 'shut down'."
"That's all?"
"Can't think of anything else."
"Bah. Thanks, anyway."