Another thing that occurs to me is the quality of the litter. Does it deal with the smell well enough? In the wild cats always bury their excrements so that other predators can't detect them so he may keep digging if he thinks there's still too much smell left...
By the way, does he do it only when pooping or both when peeing and pooping?
I did try an open litter box the problem is he thinks every open box shape item in the house is a litter box, so I had him pee in the trash can lid while I was cleaning and just pee in a box that he found so I try to avoid open boxes, although he did have one for a bit (he actually even had two for sometimes because we moved to a much bigger house so we wanted him to find them, but he would just pee in one and poo in the other) and he would scratch the walls there too...
he does not dig or even cover up anything he leaves it uncovered and just files his nails on the walls. I've never actually heard him digging in the sand it just sounded like that's what he was doing at first. as for the smell I did make a habit of peeking inside the box every time I visit the bathroom or just pass by and we have little diaper bags that are scented so we scoop after him every chance we get, and completely change the litter once every two weeks (we usually have to fill it up a bit before because its the clumping kind) and the actual plastic is clean because we use liners, so there's no smell absorbed in the plastic so I do keep it very clean for him.
I wonder if he just likes vertical space I am building him a cat tree with plenty of scratching posts but I honestly don't know if he would even use them though lol
It's good to hear that he's not the only one with that crazy habit !
he also has this real weird habit of dragging things to his litter box when something is bothering him or he just want's to make a statement, so when we moved to the new house he dragged all the bathroom carpets into his box (god knows how!!) and peed on them and when i went on vacation he took one of my little brothers socks placed it right in front of my bedroom door (it was closed) and pooped on it ! but I have heard of many cats doing this before, even with the carpets and towels so I know why he does that haha
Joleen CohenI just call him and invite him to come out when he over does itEven if you don't come to the box, I bet he has figured this link between his digging and your calling and now does it in order to get you call him. Cats love to train us.
Barsik has another "ritual" to get our attention. He's toilet-trained, and every time he's finished his business he starts running around the rooms making as much noise as he can (this includes scratching the couch... he knows we won't stay calm when he's doing it, hehe). Now that he's older he's become less energetic but he had been doing that "Hey look at me, I peed!!" ritual for years.
Oh cats! You'll always find a key to your humans.
Anonymous:Mine digs everything in and around the box be it litter, the walls, or the floor - everything that gets under his paw. He does it for 15-20 mins so thoroughly that I sometimes find the box in the middle of the bathroom!
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