My 20 month old daughter is 8 days into potty training. She is doing a great job going on the potty when I am around. However, when I take her places like church or the gym she seems to be having accidents. I have showed her where the potty is but it is behind a closed door and she is not overly verbal to tell the teacher she needs to go. What advice do you have for me to make her more successful in this type of public setting.