Ok, so for the last couple of weeks, Max has started showing aggression toward some dogs. I honestly have no idea where to start trying to fix it or if it can even be fixed. I admit defeat and I'm coming to all of you.
First I'm going to describe the scenarios that this has happened in.
1) I was walking Max out behind our apartment buildings. Another tenant walked out of his apartment, about 50 yards away, with his dog. He never walks his dog on leash. I'm not trying to portray him as a bad guy, because he is not. One of the nicest guys you'll ever meet. Anyway, his dog came running over to us. Max had never met this dog. Honestly I don't think he has ever met a dog like him while he has been living with me. This was about a month and a half after I got him. Well the other dog comes running up to us. As he gets close, he starts trotting with his head stuck out, ears forward, hackles raised, and tail straight in the air. I know these are danger signs if your dog is not the really submissive type. Well, I thought that Max was pretty submissive. Wrong. Max immediately raised his head and ears, and then he changed into a beast that I had never seen in him before. I mean he was being downright viscous. Now once Max freaked out, the other dogs owner called him and he came and sat right beside him while Max was carrying on. I then drug Max off and that was that.
2) Next time, I was walking Max out toward our normal area, and I saw a different black lab out there with his owner playing fetch off leash. Right about that time, the dog saw us. This dog wasn't as well trained. He was about 8-9 months old. He ran up very innocently. I couldn't make out any signs of aggression. He seemed to be a little afraid, but nothing that several other dogs haven't already done around Max. By the time he got close to us, Max had his head up, ears forward, and tail sticking a little in the air. They sniffed each other for a few seconds, then Max flipped out again. By this time the other dogs owner had gotten to us and had his dogs collar. I apologized, turned around, and we went to another area to go for our walk.
3) Just tonight, I was praticing off leash recalls with Max behind the apartment buildings. We were doing GREAT. He was coming to me with enthusiasm and gusto each and every time. I even recalled him from about a football field away. (Sorry had to brag in that regard). Then a couple of Max's friends came out and they were walking around with each other and playing a little and being really good. Well then, I saw the guy's door from incident #1 open about the same distance away as before. I grabbed Max's collar really quickly. When the other dog within about 5 yards of us, Max flipped out again. And this time I almost couldn't hold onto his collar good enough. But the other dog was running in our general direction, and his owner yelled leave it. The dog then just ran right on by without so much as a thought about Max going crazy and barking. [ETA: I don't think the dog was even running toward us, he was running toward the open field behind and to the side of us. He wasn't even really paying attention to us.] I finally wrestled his Easy Walk onto him by this time. Then he was fine while the other dog was a long ways away.
The first two times Max was on a leash. He doesn't show any aggression whatsoever towards dogs smaller then him. Male or not. Unneutered or not. He ignores them to the best of his ability. From what I have seen, females do not bother him in the least, no matter the size. So far it has just so happened to be large, male black labs that unneutered. But I'm not sure if its just large male dogs in particular. I also want to get across that he shows the signs of aggression at the same time or before the other dogs do. I do not believe that it is fear based, but I very well could be wrong.
Sorry about this being so long, but I wanted to thoroughly describe each situation in hopes that it would help you help me. Please help me. Any techniques or advice will be considered. I need to figure out how to get a handle on this before it gets worse. Thanks.