And look at that! He actually listened to your advice! "Hooray!" Yep, Crazy Dean's sneaked into Uncle Martin's room, and while his mind is quickly running away from him, he still has just enough sense left to realize that "crazy is the clue." He's somehow managed to deduce that The Wraith doesn't just feed on the insane, it also has the ability to turn the lucid into lunatics, thereby ensuring for itself a steady supply of its favorite type of BRAAAAAAAAIIIINS. Therefore, Sam and Dean had to have been infected by someone they've come into contact with since they entered the asylum, with the most likely suspect of course being Nancy The Nubile Nympho, as she "slobbered" (as Dean puts it) all over the two of them shortly before their troubles began. Now, that's a basic description covering the important plot points in this scene. What I can never do justice to in this recap is how funny the interspersed insanity antics are between Jensen Ackles and Jon Gries in this and the scene that follows. Is it all coming across more like some ridiculously loopy acid trip rather than an accurately dramatized descent into hellish madness? Of course it is. But if I wanted to subject myself to an accurately dramatized descent into hellish madness, I'd watch The Bachelor. "The Snake Pit!" Raoul excitedly shrieks. "Watch The Snake Pit! Olivia de Havilland is simply divine!"