Honestly, it's a day by day or week by week thing... Sorry
@Soap: I went through the same thing with my boxer, he had a keen nose for the most expensive item laying around... ahem @taramay 's coach sunglasses... Trust me, you'll be fine, just be patient, train, train, train, train the kids too, and in a few years you'll have forgotten how rotten a puppy he was!
Also, Tara's DVDs, Tara's favorite cookbook, and I'm sure many other things that have been forgotten. I can't even remember how many times he chewed the cable line. He was a complete terror. But, I got some satisfaction when puppy Billy ate his own poo and promptly barfed it up on @ohhappypets bare leg. He also stole and ate an entire container of French Onio Dip. That dog is a mess, but we live him dearly. Some days more than others!
He was probably trying to get it to work outside. Haha! Dogs are nuts. Colt onced managed to get the brand new $200 sheets off my bed and shred them. HE WAS INSIDE THE CRATE! I don't know how he moved the whole thing next to the bed...but he did. I sat down and cried that time. Wouldn't trade him for the world though.
I think if you were able to get your kids to play with him, instead of irritating him, he'd do a lot better. There's a thing I got for Zora when she was in her busy body stage, it's a ball that they have to roll around and when it rolls just right a treat will fall out. I used to full that thing up with her dog food and that's how she got her meals. It kept her busy for a long time and got some energy out. I LOVED that thing. Maybe toys like that would help your pup keep busy instead of taking his energy out on the A/C unit!!
Now that i am at hime I can see the picutures you posted of your dog.... He is georgeous.. I would seriously consider taking him if I didnt already have my two golden retrievers and a Sr Shih tzu that does not have much time left with us...