PBL and Johnny were digging a ditch on a very hot day. Johnny said to
the other, “Why are we down in this hole digging a ditch when our boss
is up there in the shade of a tree?” “I don’t know,” replied PBL,
“I’ll go ask him.”

So he climbed out of the hole and went to his boss. “Why are we
digging in the hot sun and you’re standing in the shade?”
“Intelligence,” the boss said. “What’s intelligence?” asked PBL.
The boss said, “I’ll show you. I’ll put my hand on this tree and I
want you to hit it with your fist as hard as you can.” PBL took a
mighty swing and tried to hit the boss’ hand. The boss removed his
hand PBL hit the tree. The boss said, “That’s intelligence!”

PBL went back to his hole. Johnny asked, “What’d he say?” “He said we
are down here because of intelligence.” “What’s intelligence?” Johnny
asked. PBL puts his hand on his face and said, “Take your shovel and
hit my hand.”