Cats understand "naughty". In fact I think they're the only animal who understands it. Dogs know "good" and "bad" but not Naughty. Same with theft. what theft is. They when they are thieving you can see it on their faces. Squirrels thieves don't that. "take" "have" comprehend is to steal. Nor do raccoons or coyotes any species of rodent. may participate in ignorant weight do, full meaning crime purpose.