I was thinking back on some dogs I've had. Some are just incessant chewers. My first dog ever was insane. She ate holes in rugs, ate the wooden leg off a large chair (we called it Ahab after that), chewed holes in walls, etc. My mother would get these 3' long rawhide bones at flea markets and the dog would plow through one per week! I'm not exaggerating. The final straw- we went on vacation and she couldn't come. We took my mother's minivan and my father's Chrysler New Yorker stayed in the garage with the dog (parents wouldn't let her stay in the house for fear of what she'd chew in there). What could she chew on a car??? The neighbor we paid to walk her every few hours called one day- crying. He said "there are obvious bite marks in the car's tires, but, umm, I don't know how to explain this, ummm, she ate the vinyl ROOF off one entire side of the car." Here's the car type/year-
https://commons.wikimedia.org/wiki/File ... 8482089628).jpg
So that vinyl, fake convertible roof? Most of it was gone, along with the rubbery padding underneath. We came home from vacation and my father brought her to the pound. I think the car damage was like $2k and my father is insane about his cars. You can't eat or drink in them. You can't even open a window "because that's how DIRT gets in!" So we all knew that dog was gone before we got home.
But she was also our first dog, and I wonder if we could have broken her of it if we knew what we were doing.
Later I had an akita that chewed a LOT when he was a pup, including my head. I literally woke up one morning to him chewing the back of my head. He also chewed a wall. Middle of the wall, just, made a hole... Thankfully he stopped chewing stuff pretty early on.
One of our current dogs chewed brick when we met him in the rescue.
I learned to take whatever they're chewing, say NO and then give them something they're allowed to chew.