These days, instead of slamming it, they leave the door open a crack when they go. Means they haven't finished asking yet.

• The ScarecrowEven a straw head knows better. Why can't you hold anything back?
  The Old HeadHolding back is for things with a body. There's nothing left of me but a mouth.
• Nick ChopperDo not speak of what was not asked.
  The Old HeadThen ask me first, why don't you. I've been waiting ten years.