Bender

Everybody has a little bit of Bender in them, they just have varying levels of capacity to override the urge to tell people what they really think (except on Facebook, where that urge is strangely diminished). But you have to sorta admire the guy (robot, being...whatever) for just looking out for number one. You also have to really admire Lego Junkie for this excellent rendition of Bender, it's pretty much perfect.