I have the odd one that likes to jump out onto the carpet now and again.
The game never go's on for too long.
I also have a bullseye pistol shrimp that steals everything he can get his greedy little claws on. (Frags, kills snails and takes their shells, rubble and even thermometers.)
He uses all of the stuff to cover the entrance to his home. I've been trying to trap the little SOB for a while, but no luck as of yet.
I'll be sad if it comes down to harpoon time, but I'll get over it.