Problems with Heel
i am having trouble with heel with my pup. hes about 4 months old currently, knows sit, stay, down, come.....now the problem with heel is that when we are just walking hes fine, but the minute he realizes that im going back and forth trying to get him to stay next to me and i say Heel, he sits down and doesnt want to move no matter how hard i pull him! i have tried luring him with treats in my hand but he doesnt give in. any ideas?