Oliver and James Phelps... Truly are Fred and George! James said in an interview that they did it at one rehearsal, but it kinda snowballed from there and they did it for a load of the scenes, then they got caught and had to re-shoot half of the movie! HI-LARIOUS!!
And then he sees Eve, she can kill and she has before. She's not ready to die and she knows the plan. But what if she forgot and the reason she drew her wand is she will kill. And she doesn't care who she kills but he will die.