Our puppies have started to get in the habit of pulling because they are not used to having a collar or leash on all day(we have a fenced in backyard, so they don't wear them) so when we go to put them on their leashes they kinda throw a hissy fit. My husband read in a book to make your dog leash friendly you have to "rescue" them from it first so they know you are not trying to hurt them by putting it on them. I'll try to explain the best I can. First you put them on their leash and then tie them to a pole kinda close to the pole and walk about 10 feet away from them. They pulled and tugged and wrestled with it for a couple of minutes and then sat down. when they sit down it means they are excepting the fact that they can't go anywhere. then you go over and "rescue them from that mean 'ol pole and they seem to just walk right next to you like you are their hero. we do this before walks and it has cut the pulling down to a minimum (only when they find a "spot" to go potty). We haven't had to do it for the last week and the book said you shouldn't have to once they have learned this. It also said not to use those prong collars, but on Killian (deceased) it worked okay, I just couldn't bear to put it on him. Has anyone ever put one on to see how bad it hurts ???? I did and let me just say OWIE!!!