Youth versus experience

A fit young man on a construction site was bragging that he could outdo anyone in a feat of strength. After several minutes, one of the older workmen had had enough.
“Why don’t you put your money where your mouth is?” he said. “One week’s wages says I can haul something in a wheelbarrow over to that building that you won’t be able to wheel back.”
“You’re on, old man,” the braggart replied. “Let’s see what you’ve got.”
With that, the old man grabbed the wheelbarrow by the handles, nodded to the young man, he said, “All right. Hop in.”