An old woman summons a vet. Her dog hasn't moved in 2 days.
-- "I'm sorry Ma'am: your dog is dead," the veterinarian informed.
-- "He can't be dead!"
-- "I'm sorry."
-- "I demand that you run a test just to make sure he's really dead!"
-- "Alright," the kindly doctor said and in short order retrieved a large cage containing a Tom cat from the backseat of his car. The doctor opened the door. The cat stepped out, circled & sniffed the dead dog and returned to his cage. "Ma'am, I can say without any doubt that your dog is dead," said the vet upon handing the grieving woman a bill for $175.
-- "A hundred and seventy-five dollars?!!" Exclaimed she.
-- "Yes," explained the vet, "seventy-five for
the house-call & a hundred for the CAT SCAN."