Yes Coco, shows aggression to people he's not sure of, he'll growl, show his teeth and lunge forward, but not actually grab hold. Also just this morning I had to throw him into a down to correct him, he decided he was going to fight another male dog, which I will not allow.
I think this stems from being with his parents till he was four months old, the couple let Coco's mother come in freely but they held onto the father. I seem to think the dog was aggressive and Coco was bullied. I'm trying to sort his problems out. He nips with excitement, to get attention or when putting it mildly he's knackered, but he just will not give in I have never seen him settle down for more than half hour max.