That reminds me of when I was in University and worked at a veterinary diagnostic lab. A local rancher dropped off a cow and wanted to know what was wrong with it. The diagnosis from the pathologist standing over the cow: it was dead. Rancher wanted to know what killed it. Pathologist indicated the large caliber bullet to its head probably did the trick. Rancher, exacerbated at this point, just stood there and stared.

Ultimate diagnosis: perforated colon caused by foreign object in the intestinal tract.