A woman walks into a vet's surgery...

A woman enters a vet's surgery and places a limp budgie on the examination table.

After poking and prodding it for a few moments, the vet declares that it's dead.

"It can't be!" shrieked the woman. "I demand that you perform a more thorough examination!"

Sighing, the vet opened a door and in walked a golden retriever. The dog jumped up on the table and sniffed the bird before turning back to the vet and shaking his head.

"Are you convinced yet?" asks the vet.

The woman replies "No way! I refuse to believe that my beautiful budgie is dead. Can't you check further?".

The vet opens another door and in walks a kitten, who jumps up on the table and sniffs the bird for a few moments. It then turns to the vet and shakes its head before walking back out.

Finally convinced, the woman says "Ok, he's dead. How much do I owe you?"

"All up that will be $850? replies the vet.

"$850!?" cries the woman. "How the hell do you figure that?"

"Well," the vet says, "If you took my word for it the first time, the bill would only have been about $30. But you chose to proceed with the lab report and the cat scan".