I also say over, snakes like to crap as soon as you clean their enclosures. Mine has done the pee and let me clean it, then once I put him back (after being out for a while) he decided to poop so I had to do it all over again. Last time he made it easy for me though, he peed, same deal I had him out for a while, then once I put him back he pooped, only this time he pooped perfectly in his water bowl without spilling any over and all I had to do was re-clean his water bowl. Like I couldn't love that snake any more than I already do but he made me happy that day.