Bragging

A strong young man at a construction site was bragging that he could outdo anyone in any feat of strength. He made a special point of making fun of one of the older workers.

After several minutes, the older man had had enough. "Why don't you put your money where your mouth is?" he challenged. "I'll bet you a week's wages that I can wheel something over to that storage shed, that you can't wheel back!"

"I'll take your bet, old man" said the young hot shot. "Let's see what you've got".

The old man grabbed the wheelbarrow by the handles. Then nodding to the young man, he said "All right.

Spoiler:

Get in!"