Yeah, I definitely intend to draw John wearing THAT shirt whenever it's plausible - it's so funny that we've seen it exactly once in the show (please correct me if I'm wrong
) in the episode most people think was the worst so far, and yet it's become such a fandom icon and a character feature, comparable to the Purple Shirt of Sex...
It's one of the things I love so much about this fandom, this joy over small details!
[I'd love to see the return of that shirt (as well as the cable knit sweater too) in series 3.]