Things I learned today:
Saggitarians are more tolerant of homosexuals than other star signs.
Motor sport fans are more likely to get into fights.
People who love maths at school really are less likely to have sex. People who like social sciences are more likely to have lots of partners.
Opera fans are less likely to get shot.
People who play musical instruments are more likely to go hunting and fishing.
All from the 1993 US General Social Survey, via Marginal Revolution. Go and waste an afternoon.