Could there really be a better response than unabashed mocking?

Hero of the Week Nominee, Sanal Edamarku, challenged a tawddle peddler to put up or shut up. And he did. Well, he tried. What did you think would happen? Edamarku would be killed by magic?

Skeptic giggles on Indian national TV as mystic totally fails to curse him to death - Boing Boing

Pandit Surinder Sharma, a famous Indian tantrick (magician) was on a televised panel discussion when he claimed he could kill any man with black magic in under three minutes. Fellow panelist, Sanal Edamaruku, the president of Rationalist International, challenged the tantrick to kill him right then and there. Hilarity ensued as Sharma chanted the death mantra, and, when that failed, waved a knife and sprinkled water on him, as Edamarku laughed the entire time.