“I can’t sleep, Doc!”

“I can’t sleep, Doc,” the patient says. “I keep thinking someone is under my bed.”  “I’ll cure you,” the doctor says, “but it’ll cost you $200 a visit.”  The patient says he’ll think about it.  Several days later the patient calls the doctor.  “I fixed the problem for free,” he says.  “Really? How’d you do it?”  “I sawed the legs off my bed!”