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."

Bad Couch Trip
I've been feeling down for so long that I finally decided to
seek the aid of a psychiatrist.

I went there, laid on the couch, spilled my guts then waited
for the profound wisdom of the psychiatrist to make me feel
better.

The psychiatrist asked me a few questions, took some notes
then sat thinking in silence for a few minutes with a puzzled
look on his face.

Suddenly, he looked up with an expression of delight and
said, "Ummmmm, I think your problem is low self-esteem. It is
very common among losers."