There Will Be Blood/Headscratchers

• Were the flashbacks to Daniel and H.W. after the "Bastard From A Basket" scene meant to show tender moments? I thought they were quite malicious, especially the second scene, where H.W. didn't seem to take it as teasing. The first, Daniel seems to be angry that he was toying with him.
• It's a bit ambiguous (like a lot of this film) because there's no sound besides the music, but I kind of agree. The first scene ends with Daniel roughly pulling H. W. over his knee (presumably to spank him), and in the second, Daniel roughly smacks him in the side of the head (a little too hard be simple teasing).