My Mother in Law has dementia and I am the daily care giver. She wears pull ups but I always know when she has to go #2. Sometimes we sit in the bathroom for half hour waiting for her to go. Trying to avoid her going in a Depends. It's hard to explain to her how to go to the bathroom when she doesn't know or understand what I'm saying. Am I expecting too much? She has had dementia 4 years. It has worsened quite a bit. Advice?