Neiko is an intact 4 1/2 years old, son of Kevlar and Lady. We have noticed in the last year his aggression and male dominance has become concerning. He has gotten "ugly" with us on several occasions in a dominant Alpha behavior. We are worried / concerned that he may show this aggression towards other people. It worries us that a situation could arise where he may hurt someone during these "ugly" times. We have been researching the fact that dogs that have been neutered lose that male dominance/alpha dog attitude. We are very active with him daily. He has been through two obedience training classes with you. We socialize him a lot and he is a very well behaved dog in public (stores, parks, camp grounds, relatives' homes, etc.) Do you have suggestions? Is neutering the answer?