I Have a 3 year old boxer that we inherited, he is a great dog, and very good with our three kids. We believe he came from a farm but was sent away to be put in the kennels as he was always in trouble for chasing the next door nabours sheep. We don't Know what might of happened when he was in the kennels but we do know that he hates all other dogs, he always wonts to attack them and will not listen to any commands, I have tried a few things such giving him a treat when he sees another dog, but does not work and does not even acknowledge you, (he gets fixated on the other dog and that's it, he will pull you all over the place to try and get at the other dog). I also tried a loud squeaker at the point of him trying to get at the other dog in hope to distract him but still nothing. can we do anything to stop him doing this,
thanks for your time.