A fan thinks the moment Walt turned into a full-fledged villain is when he poisoned Brock, and wants to know how Walt physically administered the poison. “That’s an excellent question,” Gilligan says. “The writers would always tell the story of the Evil Juice Box Man. The way we worked it out on our timeline is he had just enough time to do it, but it would’ve been very tricky indeed.” They figured he crushed the poison up, stuck it in a juice box, and got into Brock’s school. “That’s our inner story, the writers and I, for how it happened. It would’ve been very tricky timing, but he was a motivated individual at that point.”