A beautiful young woman about to undergo a minor operation is lying on a gurney in a hospital corridor awaiting the medical staff.

A man in a white coat approaches her, lifts up the sheet, and visually examines her naked body. He walks away and confers with another man in a white coat. The second man then approaches the girl and performs the same examination.

When a third man approaches her, she asks impatiently, "These examinations are fine, but when are you going to start the operation?"

He shrugs and says, "Your guess is as good as mine, lady. We're just here to paint the halls."