Have you bought my "Donaldson is the Mad Hatter" line yet? Just watch the scene in the previous episode where he's running away from Dugdale down corridors
His whole performance in Ep 4 reeked of "of course, we're all
Not to mention the rabbit outside the comic store in Ep1-that was just another reference though, it had no other deeper implications.
No I haven't. I completely missed that line. I'll have to watch that bit you mention again. Good spot.
I do realise that frequently the writers of things such as this love to put red herrings in there, but I find it as interesting to see how they play with them as I do with the real clues.