. >>> from air bnb to air pnp, it's an app that helps you rent out a toilet for a few dollars. the company started out as a joke, but has since gone viral, taking the sharing economy to a whole new level. gene wells takes the app for a spin. >> has the sharing economy gone too far? sheer a business that gives peer to peer new meaning. >> it was an experiment. the experiment was what if you make a company that's so funny that it markets itself. >> inside a men's room, travis laurendeen discusses his announcement, airpnp, a website that let's people rent out their toilets. >> last mardi gras, it was a joke. someone was like i have to pee. i was like i'm going to make airpnp. they were like, that's a good idea. >> so he decided with a business partner to lauren airpnp. the rest is viral history. >> it just became such a word-of-mouth story, it was out of our control. for some reason, it became viral. who knows. >> have there been any reports of safety issues and having to protect against that? >> luckily, you know, we haven't had something go wrong. >> here i am leaving san jose a