Hi, my dog doesn't pull anymore on walks except when we are anywhere near the vicinity of his favorite park, or we are actually on the way to the park. No choke collar or prong collar seems to stop this, and I feel bad that he chokes himself in pain in an effort to get to the park. I do all the classic methods such as stopping and not moving whenever he pulls, turning around and going the other way, collar pops, but once I take a half step towards the park he pulls like crazy to get there. Walks around the neighborhood are fine so long as I don't walk towards the park. Any new ideas?