I've been disagreeable for as long as I can remember.  Case in point: when in the first grade I was forced to wear a gypsy costume for Halloween when I really wanted to wear the Hawaiian Girl costume, I refused to smile in any pictures. I used to worry about that scowl, but new research shows that my disagreeable streak might actually be a virtue.

A new study published in the Journal of Personality shows that in an experiment involving delivering electric shocks "nice" people were more likely to follow orders while "unfriendly" or disagreeable people were less likely to hurt others.

There you go.