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."

A man was walking in the street when he heard a voice...
A man was walking in the street when he heard a voice: "Stop! Stand still! If you take one more step, a brick will fall down on your head and kill you."The man stopped and a big brick fell right in front of him. The man was astonished. He went on, and after awhile he was going to cross the road. Once again the voice shouted: "Stop! Stand still! If you take one more step a car will run over you and you will die."The man did as he was instructed, just as a car came careening around the corner, barely missing him."Where are you?" the man asked. "Who are you?""I am your guardian angel," the voice answered."Oh yeah?" the man asked..."And where were you when I got married?"