Violence to the Self

Both of the films from this week are very concerned with violence done to the self for many reasons and in many forms. In Old Boy, this takes the form of actual physical mutilation, as well as the psychological punishment and guilt. In the Aimless Bullet, we see both the endurance of pain as a form of sacrifice (the toothache). How does this self-flagellation play into the crisis of masculinity as explored in the readings? Is this a part of hypermasculinity? The objectification of the self? Engaging the viewer's sadistic side (especially in Old Boy)?