A mother picks up her six-year-old daughter from school and asks her what she did today.

"I met a boy named Darren and we played doctor together," replied the girl. "I was the patient."

Concerned by this but trying not to sound too alarmed, the mother calmly asked her daughter what Darren did to her when he was playing doctor.

"Well, he made me wait for almost an hour and then double-billed my insurance company."