Logic

My 80 year old friend and fairy god mother Sylvia came over for lunch yesterday. We had elbow pasta with Parmesanio Reggiano grated on top. When she didn't eat much I asked her why. "I'm afraid I'll get fat."
That's like taking off a wheel of your car to save gas mileage," I said. "You need food to think and be balanced and healthy."
"But I'm saving that tire!" she said.