So my one dog who I believe has separation anxiety has escalated again...the dogs currently stay in our large laundry room with a dog door out to a chain link run with hot fence running along the bottom. (She broke several teeth on the kennel and successfully ate through chain link when we first set it up). The electrified run seemed to be working well, no more chewing on the fence or escaping for months...then last week she started by eating the door knob in between the house and the laundry room, she even got it open and unleashed the puppy on the house. Great! So we replaced the door knob with one that locks and she has knawed on it, but hasn't been able to get through it. After that she decided to eat all of the trim around the back door and the door to the garage. It's just wood, so at least she shouldn't be breaking her teeth on it. Before I replace it I sprayed it with bitter apple and she seems to be leaving it alone. So Friday she tries to get out of the window! Knocks down a bunch of stuff including my guinea pig's cage (pigs are ok and their cage has been straightened out). So yesterday I put a "calming pheromone" collar on her and everything is fine when I get home. Cool! Not really, so today I came home and she ate the deadbolt hardware off of the back door and knocked down stuff near the window again. I've already paid a trainer to come to the house and evaluate her, her suggestion was the chain link run...but now I'm out of ideas. She was fine with the run and laundry room for a good long time...what the heck could have set her off??? Nothing is different...ahhhhhhhh