I am trying to litter box train Sargie, but he won't stay in the box when I put him there. He wets on pads - any pads, newspaper, throw rug - anything he perceives as a certain rectangular size - leaves droppings near the pads. I can't get him in that box. I have put puppy pads in it, with the Training Spray on them - no luck. What are the secrets of your success?