Keep on telling yourself who the best man is, in case you have forgotten how much of a winner you are. Perfect for people who seldomly shoulder check and passengers who had always resented the way you drive.
Perfect for emergency situations when your phone has 98% charge and your friend's only have 2%. Where else are you going to fully charge your phone? Answer, your friend's. Bonus points for watching your friends panic as you suck the remaining juice out of their beloved devices.