During the late 1990s in Russia, medical schools were routinely performing surgery on cats and dogs for money, and students were seen as a nuisance more than anything.
We have found gauze in corpses, forgotten by surgeons during an operation, and once while examining a person who had died very suddenly, we felt some kind of dense formation in the person's abdominal cavity. Since we have to examine any such formations, the medical expert made an incision, only to discover a pair of tweezers