It seems a farm boy accidentally overturned his wagon load of corn. The farmer who lived nearby heard the noise.
"Hey Adam!!" the farmer yelled. "Forget your troubles. Come in with us. Then I'll help you get the wagon up."
"That's mighty nice of you, " Adam answered, "but I don't think Pa would like me to."
"Aw, come on," the farmer insisted.
"Well okay," the boy finally agreed, and added, "But Pa won't like it."
After a hearty dinner, Adam thanked his host. "I feel a lot better now, but I know Pa is going to be real upset."
"Don't be foolish !" the neighbor said with a smile. "By the way, where is he?"
"Under the wagon."
(joke from here)
(And don’t worry – it was a corn pool made for playing, not an overturned wagon, regular wagon, or grain bin.)