Michael D. CohenA la Kurt Vonnegut's 'Barnhouse Equations'? Possibly, but just not as humorous -- there's no cognitive dissonance. The molecule-like toy next to him screams "Science", while his large and beautifully rounded cranium suggests a powerful intelligence. Finally, trying to see him as an Evil Scientist, literally in the face of his extreme neoteny, is very difficult, which is what makes it so funny.
There's entirely too much sharing on Facebook these days, with people openly attempting to indicate their actual feelings. To put the kibosh (from the Gaelic, "cap of death") on this, I hereby endorse the use of the following Unemoticons: