Seeing "Angels & Demons" this past weekend made me nostalgic for some retro Tom Hanks, particularly after a columnist on Slate complained that he wasn't funny anymore. So I dug up this "Happy Days" clip on YouTube that I'd never seen before. In it, Hanks plays a karate crazy dude seeking revenge on the Fonz 17 years after he pushed him off the swing on a playground. After all, his "momma didn't raise no stoop niggle." Who will win the showdown? I won't spoil it, so see for yourself.