[Arthur swallows when she touches his cheek, and he shakes his head.] You have no idea how much I wish I could believe you. But I can't. There's no way of proving this is real... All the evidence points the other way. [With that, he raises the gun, not to shoot her, but to thwack her across the head and take her out of commission. If she's right... no lasting harm. If she's lying, that's one projection down for now.]