Researchers from Johann Wolfgang Goethe University scrutinized the physiognomy of prison inmates and say the ones with wide faces are more likely to have Machiavellian egocentricity.
In layman's terms...these guys would beat you to death for the loose change in your pocket.
The theory? Wide faces in men are produced by high levels of testosterone during puberty. Setting these guys up for a lifetime of mindless rage and worse...
