"Doctor, I'd like you to evaluate my 13-year-old son."
"OK: He's suffering from a transient psychosis with an intermittent rage disorder, punctuated by episodic radical mood swings, but his prognosis is good for full recovery."
"How can you say all that without even meeting him?"
"I thought you said he's 13?"

I've heard it said don't go to bed
Three little boys were bragging about how tough they were."I'm so tough", said the first boy, "that I can wear out a pair of shoes in a week."