Scientists discover the darndest things -- especially by accident. In this case, researchers at London's Institute of Child Health were looking into a genetic disorder in girls called Turner's syndrome, the most notable symptom of which is a lack of social skills, interrupting others in conversation and misreading moods. Trouble is, they only have one complete X chromosome, inherited from their mothers -- like men, who are XY. This would suggest that rude, aggressive men simply cannot help themselves; they're born that way. They can learn social skills, says lead researcher David Scuse, "but they are not very good at them in the first place." (Dr. "Scuse" indeed ...) Nature vs. nurture being what it is, of course, some guys can be pretty nice. But does this mean the louts have a free pass? Discuss!