My vet did that with my late dog. He was motionless and not breathing. I took him to the vet. The vet said my dog was dead.

I said, are you sure? He said let me run a more sophisticated test. He opened the door. In walked a feline, circled my dog 3 times, and walked out. No response.

I got my bill. Office visit, deceased dog $50. Second opinion, CAT scan $25.

It is an old joke, but worth it!