Alarming
It was the smoke alarm going off. Her going off on him for hearing it and doing nothing about it. Him saying he was barely noticing it as he was reading and drinking coffee. The alarm going off over their heads and her saying how this was just his way of being. Him yanking the thing. Their listening and staring at each other, then hearing it again. He was still explaining it could be the batteries dying, not quite dead, as she walked away, fuming.