How long will it last???

I am working in the office and I hear the girls all playing nicely!! First Ash was reading to Dyl, now she went on the computer and Brook is reading to Dyl. They have figured out who will go next and they are all using their really sweet voices. How long before they are back to normal. You know the constant screaming and yelling "She looked at me" "She's touching my stuff" "You're a boob" I can only hope that they are going to stay like this. I am tired of being a ref. I don't want to spend tomorrow screaming at them (we are going to Fire Island - which they are very excited about so maybe that is why the good behavior) Knowing as I do that this won't last, I guess I should just enjoy it now while it lasts. My phone says it is 9:19 we will see