How are you getting out of your pen??
I have a puppy pen in the living room with a cage in it. Cage door permanently open, so pup can choose to go in and out.
Pen only used when no one can watch her, eg when children in the bath or I'm taking rubbish out.
Last 2 times I have walked back in the room to find the pen door closed but puppy out.
Is she levitating?