At will (poop)

"... Well, anywhere."

"Actually, I need to explain a few things because this is odd. Your new reality will be such that peeing is entirely optional: you could never pee in your entire life; or you could pee every moment of your life, the choice is yours. It is worth noting that if you are your body will do whatever it was doing, but other than that it's entirely up to you. You can also pee pretty much anywhere you like, nobody will mind as it dries up without a trace soon enough anyway, and will not cause a problem. Actually I should add it's pretty much the same for pooping. You can either always be pooping, or never in much the same way. Basically, peeing and pooping are a matter of style and self presentation... or just a bit of fun, it's up to you."

"I'll stop talking now, I think you get the gist. Hope you have a nice day."