OK, so we got given one of these a while back:
so have it just propped up in Storms tank and give him a treat from it once or twice a week, it's designed with a ledge at the bottom that I thought only maybe a Robo would be able to get past and have had no problems.... until tonight! turns out Storm CAN squeeze past the barrier, I looked over at the cage to see this:
so... after me panicking about how I can get it apart if he can't get out himself and considering breaking it to get him out, he turns around, squeezes himself back out and gives me "those eyes" as if to say "what did I do??"