Odds are you don’t commute to work with an RPG in the passenger’s seat, ready to take aim at the first jerkbag that cuts you off. So let the Blow Up Traffic app ($.99 on iTunes) do the dirty work for you. Mount your phone to the windshield, locate the offending motorist, then yell “Fire!’ like a madman to take their vehicle down (virtually) and see the (virtual) gunfire and (also virtual) explosion on your screen. This sounds way better than a stress ball.