I have a 4 year old Chihuahua Boy who is extremely insecure. I desperately want to socialize him but he doesn't seem to care about other dogs that are around. He's actually aggressive towards other dogs and growls and tries to bite them! He is OK around other chihuahuas but that's about it, other breeds should stay away!!
One thing I can say is he love ppl and is very sweet and gentle around them.
How can I get him to STOP the aggression!! Any suggestions out there? Anyone facing the same issues?