When dolphins attack

Oh man, the most disturbing image ever to appear on the Simpsons, primary colored and primitive, is that of an attack dolphin, flying through the school window, impaling Groundskeeper Willy in the chest with his pointed porpoise head. In related news, paranoids around the world rejoice! From the Guardian, "It may be the oddest tale to emerge from the aftermath of Hurricane Katrina. Armed dolphins, trained by the US military to shoot terrorists and pinpoint spies underwater, may be missing in the Gulf of Mexico."