Abia & Gigi argue a lot and it gets annoying. When they come to me with a silly dispute that can't be settled (like what DVD to watch), I put a pair of underpants on my head and say: "This is a job for Captain Overpants!" and listen to their arguments and sit them down to settle the dispute by negotiating an agreement.
Captain Overpants: "keeping the world safe from squabbling sisters"
I once walked down to the living room forgetting to take the 'hat' off. Wa didn't bat an eye. She's weird.