My tall handsome redhead with the four white sox, is smart. This actually happened some time ago but I though it might cheer up someone's day as it did mine at the time.
Leo like's to poo in one corner of his box, and on this particular day my non-parelli husband was mucking him out, and was in that corner.
Leo hinted to him that he would like him to move, i.e. nudging him and walking in circles around the box (which I know mean would you please move as i want to go to the toilet).