The San Francisco Giants is one group that you do not want to make mad.
Just look at Brian Wilson. Those eyes are like laser beams burning straight through any opposing batter's soul. While most batters would likely rather punch themselves in the face before charging the mound to take on Wilson, there have been a few that have dared test the patience of the G-Men.
Not to bring back bad memories, but here is a slideshow of recent public enemies of the San Francisco Giants. Just as Hoover's G-Men set out to round up gangsters and bootleggers during prohibition, you best believe the SF G-Men are on the hunt as well.
*This list is a work-in-progress and will likely grow. Feel free to make suggestions.