Although to be honest ther are times when I wish you could use the Seppuko option more. I was a small clan with two vassals. My son and a random guy. I naturally backed my son for clan leadership, random guy backed himself. My son decided to back random guy. Talk about dishonouring your father, the shame I tell you. So I am going to have to get Birken to have a long talk with the AI about sons and their duty to their fathers.