My dog is about 18 months old now. And he's still chewing things he shouldn't.
There's two problems really:
Picking up things to run off and chew, anything out of the ordinary, like tissue on the side or a pen that fell on the floor. He took a scalpel once and cut himself...
Chewing things when we're not there. He took a chunk out of the kitchen top, the fire place, skirting, etc.
He used to be kept in the kitchen but as he got older and didn't chew as much, I gave him access to the lounge and was hoping to give him more but he hasn't managed to get there yet. Following the advice of Dr. Dunbar, if he doesn't chew, give him more freedom - if he chews again, put him back at Square one for a week, etc. The most he has managed is about 4 days in a couple of months.
We used to always give him a kong/wobbler when we left but he's either not interested in his wobbler now or he is far too good at kongs and finishes them in minutes. Unless we freeze them, but he's discovered that if he waits for it to defrost, it's much easier, and so it just takes a few mins after he's waited. He won't touch his wobbler at all really any more.
I have bitter Apple spray but he just targets something else.
I've tried showing him what he's done, and he understands I don't approve. But will carry on when I'm not around.
In regards to picking up random things like tissue, I've no idea what to try. I was told it would fade.
He's on his own whilst we're at work, my partner returns for an hour at lunch. So he's on his own for four hours at a time.
We leave his toys in the lounge when we leave, which he grabs as soon as we get home. And he dies play with them because they've moved.
I'm just looking for any tips on what else I can try really.
And I should add: since he's lost interest in kongs (which we filled with all sorts) he's more anxious when we leave, Barking at the windows, etc.