Oh, and it was in self-defense.
Oh, and I found a willing subject for a little experiment ... Thanks, Kristoff for the tip!
This difference seems to explain many of the most contentious issues in the culture war. For example, liberals support legalizing gay marriage (to be fair and compassionate), whereas many conservatives are reluctant to change the nature of marriage and the family, basic building blocks of society. Conservatives are more likely to favor practices that increase order and respect (e.g., spanking, mandatory pledge of allegiance), whereas liberals often oppose these practices as being violent or coercive.
In the graph below, your scores on each foundation are shown in green (the 1st bar in each set of 3 bars). The scores of all liberals who have taken it on our site are shown in blue (the 2nd bar), and the scores of all conservatives are shown in red (3rd bar). Scores run from 0 (the lowest possible score, you completely reject that foundation) to 5 (the highest possible score, you very strongly endorse that foundation and build much of your morality on top of it).
To learn more about "Moral Foundations Theory" and political psychology you can read this paper: Haidt, J., & Graham, J. (2007). When morality opposes justice: Conservatives have moral intuitions that liberals may not recognize. Social Justice Research, 20, p. 98-116 or visit www.moralfoundations.org.