I have a Springer Spaniel/German shepherd cross who is 8 months old. he has always been excitable but as he is hitting adolescence its getting worse. his air snapping is getting worse- by this I mean, he bites or snaps at air around him when excited and happy/playful. Its not aggressive in anyway but I worry about him doing it around small children (I have nieces and nephews) and dog walkers have complained when they bend down to put his harness on and off he does it. I also worry it could escalate into nipping- anyone else had this??