Maisy will not go in her crate! We think shes just being stubborn since before whenever we opened the door to her crate she knew to was time to go to bed and just would walk in. Shes been doing this for a while now and it feels like we have done everything. We even tryed putting a treat inside and she still won't go in, I also washed the mattress that she sleeps on just in case she had an accident and didn't want to go inside. Thanks for any advice! ???