I agree with Trey, I think Jensen was trying to introduce O'Brien to
war, not mess with him. By introducing him to one of the coping
mechanisms of war he tries to remove the uneasy and awkward feeling of
the first dead body O'Brien sees. However, it just makes it a little
bit worse for O'Brien because of all the prodding and the sight of the
dead body as well. "I felt a moist sickness rise up in my throat. I
sat down beside the pigpen, closed my eyes, put my head between by
knees," (O'Brien 226) This is how O'Brien is able to cope with the
body, because the mockery and taunting of the body just makes him even
more uneasy. I would probably have done the same as O'Brien because
the taunts would just make the sight of the body even worse for me
than if they hadn't done anything to it.