Join Lyle as he goes to great lengths to make his pet mouse smile. He juggles balls, trips on his own feet, and even tumbles backwards into a can of paint as he tries to entertain his furry friend. Children will laugh out loud as Lyle's hilarious attempts become more and more outlandish. He barks and quacks and clucks and moos, but in spite of Lyle's buffoonery, it is his sister's calm ingenuity that makes the mouse beam from ear to ear.