toby is almost 5 months old and is starting to..well...act more and more like a little boy. people have asked me if i'm going to use him for breeding, but i'm just not interested in that because i don't know the first thing about it. my lab got fixed at the pound at just 2 months old so i haven't ever come across some of the things toby is doing. we'll be in the middle of a training session and all the sudden he gets really excited and quits focusing and starts humping my leg. it's getting annoying. would getting him fixed stop some of this dominant behavior? and at what age should i do it? my vet told me 6 months.