A japanese toilet maker TOTO has a toilet bike project now. It is the one that bike runs 1000km to Tokyo on biogas funeral. But since the seat has toilet shape(it is just a symbol and it doesn't work) I read foreign sites misunderstood that the bike can run by your poop! it's a bike powered by your poop! No no no no, I hope you understand it's wrong.TOTO appeals the biogas part and the bike doesn't run by your poop!