A woman brought a very limp parrot into the veterinary surgery. As she lay her pet on the table, the vet pulled out his stethoscope and listened to the bird's chest. After a moment or two, the vet shook his head sadly and said, "I'm so sorry, but Polly has passed away." The distressed owner wailed, "Are you sure? I mean you haven't done any tests on him or anything. He might just be in a coma or something." The vet rolled his eyes, shrugged, turned and left the room, returning a few moments later with a beautiful black Labrador. As the bird's owner looked on in amazement, the dog stood on it's hind legs, put his front paws on the examination table and sniffed the dead parrot from top to bottom. The dog looked at the vet with sad eyes and shook his head. The vet then took the dog away, but returned a few moments later with a cat. The cat jumped onto the table and also sniffed delicately at the deceased bird. The cat sat back, shook it's head, meowed and ran out of the room. The vet looked at the woman and said, "I'm sorry, but like I said, your parrot is 100% certifiably..... dead." He then turned to his computer terminal, hit a few keys and produced a bill which he handed to the woman. The parrot's owner, still in shock, took the bill. "Â£200!" she cried hysterically, "just to tell me my bird is dead!!!" The vet shrugged. "If you'd taken my word for it the bill would only have been Â£20, but what with the Lab report and the cat scan..........."