A lady brings a duck into the veterinary clinic and says: “I think my duck is dead”. So the veterinarian takes a look at the duck, examines its heart, checks from head to tail and remarks: “Lady, your duck is dead”. The lady says: “No, I am not so sure, can you check into it a little bit further”. So he whistles and in comes his golden Labrador dog. His dog puts his paws up on the table and sniffs the duck from front to back, shakes his head and leaves the room. The Vet says “Lady, your duck is dead”. The lady says: “No, No, No, I am not so sure that my duck is dead”. Lady asks “Can you triple check?” So he whistles again and in comes his cat. The cat jumps up on the table, sniffs the duck from head to tail, shakes his head and leaves the room. I’m sorry Lady, but your duck is dead!” The lady says: “Okay, I’ll accept that the duck is dead”. “Now how much do I owe you?” Well, the Vet says:” That will be $285”. The lady says: “$285 for what?” Well the Vet says: “The diagnostic was free. But the lab costs were $135 and the cat scan was $150”.