Grandpa and his 7 year old grandson are gardening when to boy sees an earthworm trying to get back into its hole.
He says, “Grandpa, I bet I can put that worm back in that hole.”
“I’ll bet you five dollars you can’t,” says Gramps.
“It’s too wiggly and limp to put back in that little hole.”
The kid runs into the house and comes back out with a can of hair spray.
He sprays the worm until it is straight and stiff as a board, and proceeds to put it right back into the hole.
Grandpa hands the little boy five dollars, grabs the hair spray, and runs into the house.
Thirty minutes later, Grandpa comes out and hands the boy another five dollars.
“Grandpa, you already paid me,” says the kid. “I know. This is from your Grandma.”