I adopted a four-year-old Jindo who has spent most of his life in shelters and foster care. As a consequence, while he is very smart, he has almost no training. He is obnoxious, needy, insatiable for attention. I understand he has never had a home, and I offer him a lot of attention. When I am home from work, he is with me. I make sure he knows this is his home and give him a lot of love. But it is not enough for him. He makes this known by constantly trying to crawl or jump on me and generally constantly being "all up in my grill". He only sits when I ask if he feels like it. I have tried doing all of the tricks I have read: making loud noises to deter his bad behavior, turning and ignoring him when he jumps on me. Nothing phases him. He does not listen, does not recognize my authority. I don't know what to do. I love this dog so much, and I am more than happy to provide him a home. He is very smart, very sweet, and very funny. But it's been six months now, with no improvement. I am at my wit's end!