Some of the things confused elderly patients do with their poop...
One fellow who seemed alert and oriented on admission was later found rolling his BM into balls and lining them up on the bed table. I asked him why he was doing that, and he replied, "Because I can."
This is really gross: I was walking by a room where another gentleman was about to chow down on a handful of poo. I ran in to stop him and yelled, "NO!! Don't eat that!" Then he looked at his hand incredulously as if seeing it for the first time and said, "Holy hell, I thought it was chocolate!" Thankfully he let me clean him up (he had a reputation for being resistive to care).
Then there was the lady who had a very dry wit and was notorious for pooping only once a week. This was her norm, and she vigorously resisted any intervention to make her go more often. Needless to say, she had some REALLY large BMs, and this one night a CNA called me to the room to see what she'd produced. It must have been 5 pounds' worth, and it was in the shape of an exclamation point. I laughed and said that was the first time I'd seen anything like it.
"Well, I was going for a bow, but didn't make it," she retorted.