Four doctors went duck hunting together: a family practitioner, a gynecologist, a surgeon, and a pathologist. As a bird flew overhead, the family practitioner started tho shoot but decided not to because he wasn’t absolutely sure it was a duck. The gynecologist also prepared to shoot, but lowered his gun when he realized that he didn’t know whether it was a male or female duck. The surgeon, meanwhile, blew the bird out of the sky, turned to the pathologist and said: “Go see if that was a duck.”