We have a Shitzu female that is over 5 years old now and is about the stupidist dog that we have had the pleasure of owning. We have tried every single trick in the book in an effort for her to stop doing her business inside of the house. She has ruined all of the carpet that was wall-to-wall when we moved in. We have always have cats and dogs for as long as I can remember, at the moment we have 5 cats so having a kitty litter box is nothing new around this house.
The past couple of weeks I have noticed that the dog has not left behind any puddles in the middle of the night for someone to step into, as she has always done, night after night after night. I think that I had heard an unusual amount of noise coming from the corner in the kitchen which is where the litter box is and so during my investigation I found the dog there and the litter was clearly newly wettened and there was some kitty poop in there also. My first reaction was to scold her, thinking that she was playing in there and even the possibility of her eating the poop as dogs have been known to do. I did manage to stop myself in time as I thought that there was a possibility that she use doing her business in there.
Well last night I heard more noise in the corner again and I did find the dog right smack in the middle of the litter box taking a leak, so I praised the little devil and gave her a treat. Now it looks like I need to buy another box and find a place for it so that there will be enough to go around for all of the users.