He couldn't figure out how to flush the toilet but mentally knew it was supposed to be clean when you leave, so he'd take his poop from the toilet, wrap it in paper and throw it in the trash. Dementia is horrible.
I am Ellemerr, Crazy Viking Lady, Pirate Librarian, Caretaker of Crazy Kittens, Dreamer of Masks, AND THROWER OF YAKS!