That's indelible ink people. The type of ink which is really difficult to rub off with alcohol or even acetone. That ink is a marker whether or not you have exercised your right of suffrage (aka right to vote) on an epic day-- May 10, 2010.
Reasons why it was epic:
-the country's first automated vote
-my first time to vote
-finally feeling like the country needs me
-finally jumping in the bandwagon of political conversation
-the candidates are unpredictable in their campaigns (so you never know who's gonna win)