actually, I read 500 pound Andre the Giant always did that at hotels as he was too large for the toilets.
He used drawers from the dressers.
I worked at a 5-star resort in Hawaii, and the Housekeeping staff offered had interesting stories to tell about guests.
One celebrity star did this all the time — pooped in the shower and left it for Housekeeping to clean up. Oscar winner. Cannot say who did to confidentiality. He/she is disgusting.