I have tried every thing in the last 6 months to stop my pup from barking, he doesnt bark constatnly but at 5.30am wanting to wake everyone including the neighbours which they have complained about and he barks everytime i come home or for a while when im home, he doesnt have full run of the house but is allowed inside for some of the time when im at home. I realise he gets bored when we are at work and school and he has lots of dog toys to distract. He also gets a walk every day and a long work at least 4 times a week. My next idea is to try one of those ultra sonic bark stoppers but i am wondering if they really work. My pup is a 8 month old Samoyed named Ziggy. He is also into digging the back yard which im trying to stop.