Let this be a lesson to all the undergrads who think they should get part marks for having a correct answer:
In a mental hospital, three patients are up for release. The Doctor decides to give them a test.
He turns to the first guy and asks, “What is three times three?”
“274,” the guy replies.
The Doctor asks the second guy, “What is three times three?”
“Tuesday,” replies the second guy.
The Doctor turns to the third guy, “Okay, your turn. What’s three times three?”
“Nine,” says the third guy proudly.
“That’s great!!!!” says the doctor. “How did you get that?”
“Simple,” says the third guy. “I subtracted 274 from Tuesday.”