I’ve never been voted off the island, named the weakest link, or told what not to wear, but I’ve weathered my share of criticism—constructive, destructive, and otherwise. A sharply-worded e-mail from a disgruntled reader makes me question my calling. A scathing evaluation from an audience member sends me back to my hotel room with a heavy heart. A mean-spirited letter from a Bible study attendee brings me to tears. Ouch, ouch, ouch. Been there, beloved? Maybe a customer’s disparaging comment about your work still rankles. Or a friend pointed out some character flaw “for your own good”—except her advice hurt...