The Adventures Of Jimmy Skunk in "Ryder Rabbit Plans A Joke"

Then he went into a brown study, which is one way of saying that he thought very hard. He wanted to play a joke on Jimmy, but like most jokers he didn't want the joke to come back on himself. In fact, he felt that it would be a great deal better for him if Jimmy shouldn't know that he had anything to do with the joke.

As he sat there in a brown study, he happened to glance over on the Green Meadows and there he saw something red.