Bugs hears candidate Sam campaigning on a platform that includes rabbit
genocide. He fights fire with fire by running against Sam himself. The exploding piano
trick has been used in a Coyote and Road Runner cartoon also, but it's funny. On
television, the Russian Roulette ending of this cartoon is often edited out. 
(Salute To Mel Blanc, WB; From Hare To Eternity, WB)