Have you ever met a celebrity? If so, did you totally flip out? When I was 17, I met Nick Carter (yes, from the Backstreet Boys). There was a line of girls waiting to meet him, and every single one of them was borderline hysterical. Some of them were even in tears. I was with my friend, who, by the time we made it to the front of the line, was basically trembling. When it was our turn, I stepped up, introduced myself and shook his hand. He seemed a little surprised but shook back. My friend…