Lol i had Caesar push so hard on the lid of a locking tub that he popped the lock off and squeezed out during the night a long time ago. It was when i was resealing his cage so i had to wait 24 hours. I found him about 10 feet away curled up under a swivel chair. He was all relaxed when i found him while i was half way to a heart attack. i know the feeling haha. Retics are pretty darn smart and even more determined. Caesar and Dot both know how to slide the doors open on their AP cages. So glad i order all my cages with locks.