My snake room is practically air-tight - It's effectively a giant cage. If something funky happens and someone escapes their cage, I can narrow down the search area to a single room (as opposed to every room of a cluttered two-floor, 5 bedroom apartment).

Today the lid of my baby carpet python's cage was askew. I don't know if he popped it himself or if i was just stupid last time i put him back but he was long gone, which is scarier than when i've misplaced an adult ball, because they're big and easy to spot. This carpet is like - a foot and a half long and no bigger around than a marker. I looked in all the easy-to-check places and then started pulling the drawers out of my racks. I have a few overly-responsive eaters and the room smells perpetually like rats because it's also the rat room, so i nearly got my face tagged once or twice, but i did find him smooshed up against the heat tape in the RBI rack.

I put him back in his tub, put the lid on securely, and weighed it down with a lab cage just to be certain lol.