Remy is 8 weeks and doesn't mind the leash. Infact walking him this morning was easy. I just kept up a good pace and walked for 45 min straight. He followed just perfect. This evening however, Remy sometimes just plopped down and refused to go any further. He just looked at me and stared. I waited him out and then did a brisk walk back home. What should I do? I've read that if the puppy starts pulling in a different direction I should stand like a stone and wait him out but I have no clue what to do when he's just sits on his own accord.