The dead duck. A not-so-bright farmer brings his dead duck to a vet, asking for treatment. The vet takes one look and says, ""I'm sorry, but that duck is dead."" The farmer asks if they can do some tests to make sure. The vet agrees and whistles, summoning a black lab. the dog puts its front paws on the table and sniffs for a moment, then walks out of the room, whining with its tail between its legs. The vet again says, ""I'm sorry, but that duck is dead."" The farmer asks for one more test, and the vet whistles one more time. This time, a tabby cat scampers in and leaps onto the table, and walks around the duck, before exiting like the dog. The vet says ""Unfortunately the duck is 100% dead sir. I'm sorry for your loss. That'll be $1500."" ""WHAT?!?!?!"" exclaims the farmer. The vet explained, ""Well Lab tests and CAT scans aren't cheap...""