Could you give her a covered bucket to keep it in rather than hiding it in her room? Then you can just dump the bucket into the toilet. Probably no use arguing or reasoning with her. Hopefully this is a stage and won't go on too long.

I knew a lady who wrapped poo and laid it nicely on a tray with other, more pleasant, items. She would stand outside her house and, when we asked her, she said she was waiting for the soldiers to come home from the war ~ these were gifts for them as they passed by. Bless her. Hope things are better for you today.

my mom does this (as well as the hiding food that was mentioned above) -- she also flushes non-flushables in the toilet. We have not found a solution. my mom just looks at me or my brother and responds with, 'well, that is how i do it.' she doesn't see anything wrong with her behavior and she used to be such a clean and germ conscience person. we are getting to just monitoring her bathroom time.

Haven't found a solution but my dad wraps poop in toilet paper and puts in garbage can in his room. I get extremely frustrated with this one too! He has no explanation when I try and ask..just a "that's what I do with it".