Oddly enough, I never had a cat do this... at least that I recall. Mind you, one of the little hairballs would crap in the bathroom sink if the litterbox was not cleaned often enough...
My eldest cat will yowl for attention, then lead me into the laundry room to tell me that the cat boxes need attention. He did this yesterday, and I apologized and said I wasn't going to scoop them before breakfast, but he could always go outside. (It was raining.)
no subject
no subject
He literally sighed and got in the box. :D