“I’ll give this $20 to anyone who comes up here and takes it.” The evangelist whipped out a bill and waved it in the air like a giant foam finger, but no one in the congregation moved. I wanted to but didn’t. The speaker repeated his offer. “This $20 belongs to anyone who will take it.” My intrepid husband leaped to his feet, strode forward and collected his gift. His smug smile provoked my envy. “Salvation is a…