Not sure really what you're asking...or if you're asking anything at all?
This is what makes weims so much "fun" to live with. They are perpetual puppies, always getting into trouble and always inventing new "games." If your dog is only 8 months old then it probably isn't aggression, but you always do need to be on the lookout for signs of things you don't find acceptable. Your house, your rules and if too much nipping is going on for ANY reason, then you have the right to stop it. I personally don't ever want my dogs to put their mouths on kids, play or not.