I recently purchased a Cavalier pup who is now 15 weeks old. He is a sweetie with great qualities. However, he sometimes growls when others will pick him up - not me. The other night my husband tried to pick him up when he was sleeping to bring him outside and he growled and nipped at him. Is this characteristic of the breed? I had another Cavalier for seven years who died of mital valve; however, he didn't have a mean bone in his body. This little guy is more vocal, but I don't know about the growling. Should I return him to the breeder? He cost a pretty penny. Thank you for any help you can give me.