I think my boxer puppy Jasper is an aggressive dog, or maybe I am wrong, he does alot of things like growls and bites(which is normal puppy behavior) But he bites alot and I tried the very loud stern "NO" and I tried putting my finger and thumb around his mouth(but not shutting it) AND I tried shaking coins in a tin to startle him from biting, it worked at first, but not after he got used to it.

Also when I put my hands on each side of his face, for any reason, I was trying to look at his eye color, he went crazy and growled and bit to get his head away, it was not hurting him for sure, so why does he show this behavior?

Nobody can touch him, he bites! Nobody can walk around, he grabs there pants, socks or legs! Nobody can pick him up, he'll grab their chin, nose..etc!

I considered puppy classes, about how much do they cost?? And what kind of things will he learn??

Please help, and feel free to give any suggestions or advice AT ALL, I definatly need!

Thanks! Also you can talk to me on MSN at [email protected]