Delivery Boy, The (film) Mickey Mouse cartoon; released on June 13, 1931. Mickey is delivering a wagon full of musical instruments when he stops to sing and dance with Minnie. Mickey accidentally hits a hornets’ nest that lands on the mule pulling the wagon, upsetting it and causing the instruments to scatter everywhere. All the barnyard animals join in playing the instruments until Pluto chews on a stick of dynamite he has taken from a local demolition site. After the explosion, Mickey and Minnie continue to play on the damaged instruments. Directed by Burt Gillett.