Horse Training

I'm not so sure what the purpose of giving the Diamond Dog horse the order to defecate stands as, but I'm guessing there's a chance to either use it 'tactically' (I say this loosely) - as in a soldier stepping in the mess and having to stop and clean his boot(s) off or if possible you can Zzzz (Tranquilize) a troop soldier and have the horse make a mess - either on his torso or (laughingly) his head and then be DISCOVERED by another patrolling soldier. The conversation 'Clean Yourself Up' !! I Don't Know IDK