Brain or muscles?
The strong young man at the construction site was bragging that he could outdo anyone in a feat of strength. He made a special case of making fun of one of the older workmen. After several minutes, the older worker had had enough."Why don't you put your money where your mouth is," he said. "I will bet a week's wages that I can haul something in a wheelbarrow over to that outbuilding that you won't be able to wheel back.""You're on, old man," the braggart replied. "Let's see what you got."The old man reached out and grabbed the wheelbarrow by the handles. Then, nodding to the young man, he said, "All right. Get in."

An elderly patient needed a heart transplant...
An elderly patient needed a heart transplant and discussed his options with his doctor. The doctor said, "We have 3 possible donors; the 1st is a young, healthy athlete who died in an automobile accident, the 2nd is a middle-aged businessman who never drank or smoked and who died flying his private jet. The 3rd is an attorney who died after practicing law for 30 years. Which do you want?""I'll take the lawyer's heart", said the patient. After a successful transplant, the doctor asked the patient why he had chosen the donor he did. "It was easy", said the patient, "I wanted a heart that hadn't been used."