My 12 month old springer has just returned from 5 days at kennels. He has stuck to DH like glue and growled at DD when she approached him. We told her to keep away from him until he settled but when DH turned his back she tried to stroke him and he nipped her arm. He didn't draw blood, but obviously it upset her and us!
He is generally a good natured dog and not aggressive, but he does occasionally guard his space by growling when he is with DH. What should we do and would neutering help?