My Cardi pup Finnigan is now 13 weeks old and we still cannot get him to walk on a leash. He will walk for a minute or two without any problems but once he realizes the leash is on him, he just wants to play with it. He will bite onto the leash and not let go and he sill usually start tugging on it like it's a game. Once I manage to get it away from him he will just do it again and it seems like the more frustrated I get, the more riled up he gets. He will start making these whining/growling noises like a little gremlin and roll over on his back so that even if I do get the leash away from him, he's in the perfect position to grab it again. It's hard to tell if his getting worked up is just him thinking it's a a game or if he is testing me. It seems more like a game to him but I don't know why he doesn't care that I am mad. He can tell that I am mad when he does other things without my even having to say anything and he will act appropriately but when it comes to the leash, he just doesn't seem to care. Once we reach the point of him lying down with leash in mouth, I usually end up taking him back inside. I just don't know what to do to get him used to the leash. I've never had a puppy be this difficult when it comes to leash training before. Any advice? I tried using a very thin leash and keeping it behind his head so he wouldn't notice it but that didn't help. He looks at my hands and when he sees me holding it is when he becomes aware of its presence.