I did Lab.In the seventies I reared a vixen from about three weeks old.First six month it acted just like your normal pup.Followed me ever where would even sit when told.At about nine month she started geting a mind of her own.When i had her out she would wander away and hiss if i put a lead on her.By the time she was ready to hunt she was geting wild.A few month later we moved to Ireland for a year.Gave her to my dads friend.