That is so cool....
Wouldn’t mind trying that!
My son has done this on several occasions while climbing El Capitan, a couple of times solo, sleeping on a portable ledge.
And he isn’t some kook. He is a PhD candidate in engineering science and nanotech researcher with a wife and two kids. I’m just thankful he isn’t into ice climbing. Granite is stable.
As to the bathroom issue, you don’t drop it, you pack it out.