The bartenders WON'T APPRECIATE you ordering drinks when you know you're not of legal age. After preparing the drink, they'll swipe your sail-n-sign and it will IMMEDIATELY alert the bartender. Then he has to PULL your drink and tend to the customers waiting while you wasted his time. Your sail-n-sign has your picture and all your vitals encoded. It won't permit you to purchase alchohol. You AIN'T missin nothin, TRUST ME!