Whatever happened to the Schrodinger's-Paltrow-Head-in-a-box?

Guest week, part one: My brother drew this as a guest strip a while back, and for some reason it's taken me until now to put this up on the site. It does fit well with the theme of 'Whatever Happened To..?', so in that respect it seems like I had forward planning or something. Which I did. Ahem. Honest