Well, for one thing they're all in one room with a door that is always shut, and most of them are too big to get under the door. Wait...that doesn't sound like something that should make me feel better, does it??

But srsly: Mr Psmith is an awesome bug-wrangler and takes very good care of them, including making sure they never escape. (And trust me, if by chance one did escape I would be at a hotel so fast you'd think I'd apparated!!)

I'm just glad we don't have the scolopendra gigantes any more. That one really did make me nervous...