my wife had a snake get out on her while I was in Ontario. She didn't push the bin in far enough, and it got out. Luckily she found it, and it was in the rack still, but behind the bin.

me, I make sure what I take out, goes right back in. I even put a small cardboard square under the bin (in front) to make sure it will not move.

not a fan of those exo-terra tanks for snakes.