Door Stop - No Dogs Allowed (that's you Riley)

My little dog kept sneaking into the closet, where we keep our cat sand boxes. She'd find what she believes are sweet treats - Gross! So ... Needed a contraption that would help keep the door from opening no more than our dog's chest is wide, yet wide enough for the cats.

It attaches directly where the door latch usually goes. You can in fact use the same screws, and install this over the top of the normal latch.