 Whenever we pee, there's nitrogen in there. So whenever I'm out, this is what I use. I come here and pee. This is a urinal. So we call it a uri-gator. So this pee goes to that basin that you saw over there. And imagine I'm peeing, and then you put a little bit of water here so pee doesn't crystallize on the pipe. But that water eventually makes it to the basin.