A woman took her very limp pet duck to a vet and asked if he could examine it.
He placed the duck on the examination table and placed his stethoscope to the ducks chest.
I'm afraid your duck is dead, he told her.
Dead? Are you sure? I mean, it's not in just in a coma or something? You haven't carried out any tests or anything!
The vet leaves the room and comes back a short while later with a black Labrador Retriever. As the woman looks on worried, the dog places it's paws on the examination table, sniffs the duck from head to foot, then looks up at the vet with sad eyes and shakes it's head.
Then the vet takes the dog out of the room, and comes back with a cat, which he puts on the table. The cat also sniffs the duck from head to foot, looks up at the vet, meows softly and shakes its head. Then the vet takes the cat out of the room.
He then comes back in, sits at his desk and prints out the bill for the woman.
She takes it and says, £150 just to tell me my duck is dead?!
The vet says, well, it would have been 20 quid, but then there's the Lab report and the cat scan to pay for.......