Hello; This is my first post other than my introduction but I really need some advice from the experienced Boxer owner. I have my first boxer who is a 6 mo. old male. Let me start off by saying he is extremely smart, a quick learner and very lovable and sociable....with people that is. When he was 10 weeks old I took him out just around the block to get him used to the leash. I have already been slapped on the hand for this due to the fact that he was not fully immunizised at that point. Anyway, we happened upon a nice lab and my boy went bezerk! Growling hair standing up, wanting to bite etc... I was quite surprised as I have two dachshunds that he is fine around at home, but I figured maybe it was fear? I tried his first puppy class at 12 weeks and was asked to come back in another month due to his unruliness. Tried again one month later and was asked the first night not to return. Fast forward to now. He is six months old and acts exactly the same way on walks. The problem now is, he is 50 pounds of pure psycho. I don't get it? I can take him out to Starbucks and he is a gem around all strangers , loves children, obeys all my commands, has never destroyed anything but he seems to hate dogs. I was hoping as he got older he would calm down but it is to the point where I can't even continue to try and work with him because he is just to much for me to handle when we come across another dog. He walks perfectly fine with me, sits on command, heels perfectly, but throw a dog in the mix and goodnight. For those of you that have been repeat Boxer owners, is this just a trait I will have to accept? I have spoken to a private trainer but he uses techniques that are'nt allowed to be talked about on this forum so I won't. I don't want my dog treated that way. I feel as though it could make him worse. After all, If I were zapped everytime I misbehaved around another dog I would probably hate them even more. I wish I could express this issue better, but the easiest way for me to describe him when he sees another dog is that a bomb goes off in his head! Help!!!!!!!