My boyfriend has an almost four year old son from and previous relationship. His son lives eight hours away in another state. He's been here with his dad, me and our 14 month old son for a month now. He is awful, never listens to anyone, runs around in a restaurant/stores, hits people including our 14 month old, etc. Anyways my concern is, since he's been here and has been around our son, my son is seeing how he's acting and starting to act the same way. How can I break my son from this bad behavior? I need help! TIA!(: