If this was done by some comics nerd, than I love it. If it was done as the first part of a viral marketing campaign for the next X-men movie, then I feel so dirty that I need to take a shower immediately.
(Found by faithful correspondent Dave, on the side of a newspaper box in Central Square, Cambridge.)
Update: Duh. I completely forgot about the t-shirts that Quentin and the Omega Gang wore back in New X-Men last year (“Riot at Xavier’s”). So I guess it’s not a loathesome marketing trick after all. Maybe.