Only when I look at someone's eyes.
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I should offer a professional desecration service. I would issue official-looking certificates to people which state that, say, their wedding is now officially invalid in the eyes of God, or that they are now de-baptized. Of course, I would try to encompass every world view; if, say, you have some spot in your garden that your local Feng Shui crazy insists on redecorating, I would issue a certificate saying that energy in this space is beyond repair and to leave it alone.
I would also help people find the most creative ways to get themselves excommunicated. Islam may pose some trouble in that regard, though.