No Waiting

Joe Armstrong’s 2000 patent application is a model of clarity:

“The amusement apparatus is operated by one user for self-kicking the user’s buttocks, or an alternative embodiment allows one user to operate the crank while a second person positions himself to receive a paddling of his buttocks for entertainment of observers.”

He adds that an LCD can display kicks per minute, and the whole apparatus can be folded for storage. Kudos.