Piper's behavior changed after the 7 month mark also but she also had a lot going on. She was spayed and within a month after that she needed surgery for Legg Perthes Disease. We had a lot of potty accidents (granted it's been winter and she pottys outside) and just a little wild with poor listening skills. She has never shown any aggression. The past few weeks, the weather has been great and I've been walking her a couple miles every day at the beach. She loves it, it tires her out, she meets other dogs and people and she is an entirely different girl in the house. There has been no accidents for a couple weeks now. She is calmer and happier. She wasn't getting enough exercise with winter and the hip surgery. On April 29 she will be a year old and she really is starting to act like a BIG girl. Make sure your little guy gets lots of exercise and he'll get by this stage and you'll notice an improvement in his behavior before you know it.
__________________ Mom to Piper  &  Chipper |