In such a situation, in 1227, Sadamichi was enjoying river fishing with his vassals in the Rakunan (south of Kyoto) near Kissho-in Temple, which had a prohibition on killing living things, when an incident arose involving a fight with the monks affiliated with the temple.
そんな中で安貞元年（1227年）、定通が「殺生禁断」の地である洛南・吉祥院前の川でで家人達と鮎釣りを楽しんだことから、同院に所属する神人たちと乱闘になると言う事件を起こした。