The Secret to Ice Fishing

A man and a boy have been sitting out on a lake all day long ice
fishing. The man has been having no luck at all while the boy has been
pulling fish after fish out of his hole in the ice. The man finally
leans over and asks the kid what his secret is.

"mmmmm mmm mm mmm mmmm mmm mmm," is the reply.

"I'm sorry, what did you say?"

"mmmmm mmm mm mmm mmmm mmm mmm," the kid repeats.

"I'm sorry, I still didn't understand you."

The boy spits something into his hand and says very clearly, "You've
got to keep your worms warm!"