Charlie has always been pretty aggressive when he has zoomies...especially with my little dogs. We all guard them when he has one. Now he's starting to get worse ...we stand out of the way & let him go but he's starting to come up & bite us and thrash our arms. When we try to stop him he gets worse. This is the only time he gets like this. We can take food from him, pet him while he's eating and grab toys from him and he's fine. Will he outgrow this & if not, what can we do?