Ko te paninga paura me te whakakākahu wera he tukanga whakaoti rongonui e rua e whakamahia ana mō ngā poupou hei whakapai ake i tōna pakari, te ātete ki te waikura, me te āhua. He maha ngā wā ka honoa ēnei tikanga mō ngā poupou i ngā taiao e kitea nuitia ana.