As far as I know, it's not illegal in football (soccer) to kick the ball really hard at someone's face if they are in the way of goal. Throwing dummies and gamesmanship are also treated as acceptable.
So how exactly does agreeing on rules of a game remove normal moral constraints? I know people wouldn't be happy if I started blasting a football at their faces, but would it be morally ok?
Read another response by Douglas Burnham, Gordon Marino