If you could explain the process, it would save lots of time pondering and plugging e, pi, and i into the calculator in random ways to figure out whats going on.
The philosophy and ideals behind the Grad Night movement are interlinked with providing an event that is safe, sober, and spectacularly fun. More than just a party, Grad Night is a commitment by parents, school and the community to conduct a great, once in a lifetime celebration.
The only thing that sobers you up is time. After a big night out you may still be over your legal alcohol limit for much of the next day. After a heavy night of drinking, it can take more than 18 hours for your blood alcohol concentration to get back to zero. Many people are booked for drink driving the next day.