Mike oppresses John by demanding the he reassure him.
Panel 1: We start out with John asking Mike why he's out of bed; Mike says he's thirsty and needs a glass of water.
Panel 2: We see a freaked-out Mike looking downstairs. John makes a garbled request to find out why ("Michael? What now?" to be specific) and Mike tells him he heard somethin' an' got scared.
Panel 3: John's attempt to console Mike (Leave your door open and your light on. We're here. You're safe. Everything's fine. Go to sleep) falls flat because of his testy delivery.
Panel 4: Mike yells Daddy and a zonked-out John asks what he wants now.
Panel 5: Apparently human contact; that's because we see a panicked little boy holding onto his confused, ticked-off dad for dear life.
Summary: It would probably kill John to show emotions; that's because his traditionalist upbringing mandates that Father look as if he were carved out of granite.