When discarding the hot water from the 茶碗(ちゃわん)after it has been returned, the host waits to allow the first guest to say おしまいにください. Still holding the
茶碗, he bows slightly with the right hand, sets down the
茶碗, and bows again, saying おしまいにいたします. The reason is so that the host can ask himself if anyone wants more tea in case the first guest forgets to ask. In that case, the host can pick up the
茶巾 rather than to set down the
茶碗 and continue to make tea (Ullrich 15 X 17).