I'd be interested to know how many women end up being molested/raped/harassed due to the absolutely ludicrous drinking age in the United States, which forces people who are 16-21 who want to get drunk, to do so in unsafe environments, like "frat houses" and private parties.
EDIT: Not only does this put the women in an unsafe environment, but also results in both men and women drinking more in one sitting than they otherwise would. Many men who become "pigs" when black-out drunk, most probably would not act anywhere near as atrociously if they were much more sober.