At the Vet – Level 3

A man rushes with his dog to the vet, but the doctor tells him the dog is dead. The man doesn’t believe it, so the vet goes to the back room and comes out with a cat. The cat sniffs the body and meows.
“I’m sorry, but the cat thinks that your dog is dead, too.”
The man is still unwilling to accept that his dog is dead. The vet brings in a black Labrador. The dog sniffs the body and barks.
“I’m sorry, but the Lab thinks your dog is dead, too.”
The man finally accepts the diagnosis and asks the vet for the bill.
“It’s 650 dollars.”
“650 to tell me my dog is dead?”
“Well, I would only have charged you $50 for my first diagnosis. The additional $600 is for the cat scan and the lab test.”