An eccentric inventor barges into Doc's lab, offering to be his assistant and showing him his inventions, such as a pie stretcher, an umbrella without a top (for days when it is not raining), a perfect game bowling ball, a toeless and heel-less sock, striped paint for barber poles, an electric iron with wheels, hot ice cream, a pistol with a curved end (which makes shooting someone impossible), and more. Slap Happy finally has enough of the inventons and introduces McFiddle to an invention of his own: the bum's rush!

Plot details indexed by the Grand Comics Database (CC BY-SA).