Awfully hard to have a bar fight without a bar. That's especially important in a place like Norway in the dead of winter, where the sun comes up, you get out of bed and by the time you're done brushing your teeth the bugler is playing taps again. That means a lot of happy hours and a lot of opportunity for them to end unhappily. Close the bars an hour earlier than you normally would and you cut violence by 16%, according to a study in the journal Addiction. Of course, 16% is almost exactly the percentage of time one hour cuts from the prime heavy-drinking window of 6 p.m. to midnight. In other news: leave a third of your food on the plate and you cut calories by 33%!