Two men are in court on drug charges. The judge says, “If, over the weekend, you can persuade enough people to give up drugs, I’ll let you two off.”

Back in court on Monday, the judge asks for their results.

“I persuaded 10 people to give up drugs forever,” the first man says.

“That’s great,” the judge replies. “What did you tell them?”

“I drew two circles; one big, one small. I told them the big circle was their brain before drugs, and the little circle was their brain after drugs.”

The other defendant says, “I got 100 people to give up drugs!”

“One hundred! How?” asks the judge.

“Well, I drew the same two circles. I pointed to the small circle and said, ‘This is your asshole before prison…’”