A man runs into the vet clinic with his dog.
The doctor says "What seems to be the problem?" The man, frantic, says, "Well, he just isn't acting right, Doc. Can you do something for him?"
At this point, the vet calls out "Kevin, can you come in here".
A few seconds later a cat comes sauntering into the room. The cat walks in a circle around the dog, checking him out.
"What's the diagnosis Kevin" the vet says and picks up his cat. The cat whispers something in the vet's ear.
"Kevin's worked out what's wrong with your dog. Take these pills and give them to him once a day. Call if you have any more problems."
Well, the dog recovered nicely. A few days later, the man receives the vet's bill in the mail: $10.00 for medicine, $450.00 for lab tests.
The man rushes to the phone and calls the vet.
"Doctor! This bill! I'm sure you didn't run any lab tests! I don't understand! What's the $450.00 for??"
The doctor replies, "Oh, sure, that's for the cat scan."