Almost daily, on our walks, we walk past a husband or wife that live a few houses down the block. They walk a large mixed breed and we usually cross paths. As we walk by I always see their dog going crazy and the owners having a really tough time holding on. Last week the husband was sitting with the dog and actually wound up on his back as his dog was yanking to get to us. I always see them screaming, yanking, and one time hitting the dog in the chest. I don't really know the couple, but we have said hello numerous times and their son has pet my dog quite often prior to their new dog aquisition. I always wan't to give them some advice or a few quick tips on how to handle their dog, but I feel out of place. Do you guys think I should speak up? Would you offer pet handling advice to a stranger?