A family practitioner, an internist, and a surgeon go duck hunting.
A bird flushes from the tall grass, flies overhead, and the FP says, “Gee, kinda looks like a duck,” and shoots it.
Another bird flushes from the reeds, flies over, and the internist sights it. “Duck, rule out pheasant, rule out goose,” he says, and shoots it.
A third bird flies overheard. The surgeon raises his gun. BLAM! BLAM! BLAM! Then he looks at the others. “What was that?” he asks.
(Hat tip: Blogs–aka Won Yuan Gai)