I know Walt tried to justify poisoning Brock by saying he didn't give him enough and measured it out, but do you think he really knew whether or not it would have killed the kid? I mean whether someone dies from poison depends on their immunity system, not just how much they're given. Walt, a professional chemist, would have known that. I mean, there's also the possibility that he wasn't thinking straight and just assumed Brock would live, but the boy was on life support, meaning he was close to death. He still risked the kid's life. Plus, i don't know if i'm the only one, but when Jesse tells Walt Brock lived, he looked somewhat surprised. What do you guys think? Was it by dumb luck that Brock survived? Was Walt really being honest when he said he planned for Brock to be alive, or just saying whatever he could to keep Jesse from burning his money? Plus, the song Walt whistles after hearing Drew Sharp's disappearance on the news is Lily of the Valley. Clearly I feel like this is meant to show that Walt has stooped so low to Heisenberg that he sees children (besides his own) as expendable. But what do you guys think?