S.T.
We have a small Shiba Inu that loves treats from the litter box! We didnt have a space to put the litter box up higher, so I just made a little "maze" to get to the litter box, the wastebasket and the wall in the laundry room. The litter box opening is facing the wall, but out about 10 inches. The wastebasket is next to it blocking the one side. The litter box is also several inches away from the wall on the side. The cat can fit between the wall and the side of the litter box to get to the opening, but the dog cant. It's a little hard to explain, but it works.