Mine is "Death Row Marv"
He's a character from the Sin City comic. This particular figure is him in an electric chair, all strapped in. You get to throw the switch and execute him!
When you do, he shakes violently, his eyes light up red, and he roars an EVIL laugh (you know, the "Buhhhhooaaahhhhhh HA HA HA kind). Then as he stops shaking, he shouts, "Is that all you got?? YOU PANSY!"