Penny the Staffie came home on Thursday. Overall things are going along okay. There have been a few instances of growling/barking with the boys and her though. All instances either involved a rawhide or just play getting out of hand. I think she overwhelms them a bit as she has quite a lot of energy and they're just not used to this. I guess she's also trying to see just how far she can push them. What is the best way to deal with this behavior? And if things get out of hand and we need to isolate them for a while how should this be done? Instigator put in a room by themselves?