"Run, you clever boy ... and remember."
Artist Javi de Castro of Lapiz Inestable took Clara Oswald's famous last words from Doctor Who and ran with it: He created this fantastic animated GIF of the eleven Doctor, from 1963's William Hartnell to 2010's Matt Smith, scampering about.
Take a look at the original page over at Crucigramas y Cafe - via io9
A fan of Doctor Who would get the running joke, for example: