Wow, what a thought. Reminds me of the umbrella company in China that "rented" umbrellas for a small fee relying on folk to return it when done. They quickly ran out of umbrellas. Or the robot hitchhiking across America that got beheaded in Philly https://www.cnn.com/2015/08/03/us/hitchbot-robot-beheaded-philadelphia-feat/index.html