Thats too bad. I have a Frech Brittany that is coming up in his fourth birthday. As a puppy, he was a little bit like what you describe but he was never that destructive, probably because he was always under close supervision. It took about a year and a half before he really started to settle down, now he is normally very calm except when he gets excited. He's quite a good bird dog and a great family pet. In October I'm getting another pup from the same mother so he has a playmate, it should be easier going this time with another dog for the pup to play with and learn from.