If anyone didn’t catch this it’s confirmation that Haise doesn’t seem to have all Kaneki’s memories back. His eyes were stinging and his eyesight was darkening around the edges because he was have a flashback to the sewers with Hide.
Men ought either to be indulged or utterly destroyed, for if you merely offend them they take vengeance, but if you injure them greatly they are unable to retaliate, so that the injury done to a man ought to be such that vengeance cannot be feared