My little guy Pharaoh is about 15 months old and I have noticed lately that he seems to be going through a rebellious (teenage) phase where he is becoming more destructive and gets wound up and wants to play very hard with me (with some play biting included). Have any of you gone throught this phase? Any thoughts on how to manage? When he is not on 10 and acting crazy he is the sweetest most cuddly loving dog I have ever known. Isn't it fun to have teenagers???