If you could take back the #1 *worst* thing you did when manic, what would it be? (Interpret "worst" however you want.)

Me-- Cut someone off on the highway pretty badly when driving into Boston. The highway split into two directions, with LARGE metal rail dividers in between them that would kill you if you hit it head on. One side goes to the left to go to downtown Boston and the other goes straight toward Red Sox stadium (Fenway Park). Well, I sped up to 110 mph and cut across 3 lanes in the span of 1 second, just baaaarely missing the divider and just baaaarely missing the person. Then I sped up and passed everyone on the right after the lanes had already merged, almost scraping my brand new car against the concrete walls and almost hitting 5 people. I almost sh_t my pants after that after realizing what I did.