Ohhh man, I know exactly what your talking about Our five immediately charge the door at the sound of the doorbell but we're at the point now that they immediatly back away and stop barking as soon as one of us answers the door. It was getting really out of hand a while back and the dogs were acting really obnoxious, so I set out to fixing it. For a couple of weeks whenever the doorbell rang I'd lead all of them into the kitchen rug and make them sit/stay. But they're so much better now with much less barking that I don't care if they don't sit/stay in the other room, as long as they're away from the door and being quiet. Now as soon as the person enters the house they're charged and greeted excitedly, with plenty of barking from Micki, but we're still working on that part.