As soon as he is taken outside he pulls, he can calm down after doing the toilet but again becomes excited and pulls when he sees people or other dogs. He is a really friendly dog and loves attention. He is becoming increasingly stronger to the point I am struggling to take him walks. He will not accept any treats when out walks so can't use that as a training method. I have tried a variety of different leads; halti's, half chokes, harness. My dreams of nice long walks with our dog and kids is really not a reality, please help.