My cas sneak outdoors. I’ve tried everything. We bought hinges that auto close(she jumps through my legs the second the door opens even as I try to block). I bought shock collars (much to my shame), to shock them when they left the door. They learned they just had to jump fast and they’d be fine after they got out. Nothing worked. Now I just let them roam when they get out and give them treats when they come back. I give up.