Branduil said:I don't remember it being explained explicitly.As far as actually getting the poison in, one plausible suggestion I heard was with a syringe. As for how he knew they would eat it, I don't know. I guess it's possible they ate the candy multiple times, and after the first time Johan poisoned it. That's just my speculation though.
Johan always acts upon people's personalities and patterns. He either manipulates them himself to achieve a desired goal or simply anticipates them and lets them do all the work for him. With the hospital director, it's not difficult to diagnose his personality type. He doesn't give a shit about the wounded kid other than the fact that he is good for business. And since the kid is practically hospital property in his mind, that makes the gifts his. And since the gifts are his, there's no reason to not eat the candy. His associates are both yes men trying to climb the bureaucratic ladder, so they'll play monkey see monkey do and follow the director's lead. But nobody else who is likely to be there would think along the same lines, which means nobody else but these three fellows are likely to be eating the candy. So the chances of the poison killing anybody but the intended targets is low.
That's just Johan, always being several steps ahead of the game.
That's just Johan, always being several steps ahead of the game.