It would be interesting to see what kind of loser Tsubaki's father is, if he really wants to get involved in squabbles between school kids. Realistically Tsubaki is only using his name to scare people, but in reality he wouldn't do anything and would tell Tsubaki to deal with her own problems. The typical monster parents, after all, are not in any important positions in the society, they are just fools who believe the world revolves around them.