He's just over 10 weeks old so I've had him for two weeks. I've read all of this very logical sounding advice on how to discipline puppies but it simply doesn't work on my dog. When he does something naughty me and my husband both know to clap once and say no firmly (at this stage it's a proper shout). He just doesn't register it, he has manic episodes where he starts biting and nipping at us and our clothes as if we are toys, if we stand up or try to redirect him to one of his vast amounts of actual toys he just starts going at our legs and has put holes in two of my leggings. We have now resorted to putting him in the crate when he does this. I can see that people have said do not use your crate for discipline, but we really have no option. He also chews at the base of the sofa and has already damaged it. When he does this he gets the clap and the no which he always ignored, and then he goes in the crate for about 1-2 minutes, but as soon as he's out he chews the sofa again, so the process repeats and I really think he has no idea he's not meant to chew the sofa. I've tried harsher forms of discipline such as growling at him and pinning him down like my parents dog does to him as a telling off (which he listens to when it's coming from the dog) but he seems completely oblivious to even those when it's coming from humans. I know harsher forms of discipline are never advised but I'm just desperate to see some kind of acknowledgment from him. I've had two red setter puppies in the past at my family home. Neither were as bad as my puppy, perhaps because it was a busier household with other dogs.