@Nach We have a house rule that the only thing that you're allowed to shout to someone in another room is the rhetorical question "Are you shouting at me from another room?!"
(The current house, which has only counters/half-walls dividing the kitchen from breakfast nook from family room, kind of subverts the rhetoricalness of that, though. When we first moved in, son non-sarcastically responded with "I'm... not sure. *Am* I?")