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It's understandable why when many people first see Howard Wooldridge, they might at first think he's a crank.

The slender, mustachioed man of middle-age frequently wears a cowboy hat, and has been known to get around town on a horse. He also wears a black shirt with loud, conspicuous lettering on both the front and back. You'd be forgiven to dismiss him as a religious zealot proclaiming the coming apocalypse, or a disciple of Lyndon Larouche.

But look closer. The shirt reads: "COPS SAY LEGALIZE DRUGS: ASK ME WHY."

And people do.