A doctor said to his car mechanic, "Your debit is several times more per hour then we get paid for medical care."
"Yeah, but you see, doc, you have always the same model, it hasn't changed since Adam; but we have to keep up to date with new models coming every year." Full text

The seven-year old girl told her mom, "A boy in my class asked me to play doctor."
"Oh, dear," the mother nervously sighed. "What happened, honey?"
"Nothing, he made me wait 45 minutes and then double-billed the insurance company." Full text