I was wondering why my poochin puppy (now 3 months old) is obedient when inside the house and hyper active when i bring it to the park. It runs all over the place where it wanted to, as if it was exercising, running and playing excessively than normal in the same time, but still listen to the 'come' command. So, is it normal for a puppy to do that?, or it will persist until later on where i will lose control of it. For now, i havent teach my puppy to walk on leash because his only interest is to bite the leash. And, is it ok if I walk it in morning or at night? or it will make the puppy confuse?