Obsessive Compulsive Disorder

The song is called compliant because that's shorthand for o c d compliant. If you have to check the handle of your door four times to make sure it's suitably locked and that you won't be attacked by marauding robbers or whatever, then the fourth one makes it o cd compliant. And you presume that monkeys must go through this same situation? Sure, i think it's obvious they do.