Well, lets put it this way, if someone runs into a you at a reasonable speed, they may total their car. Your coffee may spill over as well. If you run into someone, you will probably go over them. A personality transformation takes place. It can be tamed by high level degrees, dark suits and neckties, but it won't go away.
Chest hairs sprout.
Teen-era testosterone levels regenerate. The intellectual centers begin to shrivel up. Obstacles become adventure. I qualified in October '97 on the 50th. This is a logo I didfor the NoBan mailing list.