Petri and Duckie get playtime in the bathtub once a week, and as usual Duckie decided to relieve herself while in the warm water. But when I picked her up and took her back to her cage, I returned to find Petri alone - fecal matter gone. It is possible that it could've fallen down the drain (although not likely since the drain was closed)... but should I be concerned that Petri just ate it? It seems a bit odd and has never happened before, so I can't figure out whether to laugh about it or be worried about him getting sick, etc. What do you think? 

