@kaelanxD Thank you for saying that, it is very sweet of you to say.
Well, it depends on the crab I suppose! If they are smallish crabs, like hermit crabs, then I think I might accidentally step on one if he were free in my home. However, if it were a largish crab, I think I should be quite scared of it and it's massive pinchers (Claws? I am unfamiliar with the proper crab terms haha) and I'd be rather glad to have glass between it and I! But mediumish crabs might be fine to roam my house haha, depending on how many were talking. ;)