She crashes weddings, but Oprah brings a gift. Odd gifts but gifts nonetheless. That’s what happened last weekend when Sarah Klein’s little brother got married in Tulsa, Okla. Klein, an actuary for Mercer Human Resource Consulting, lives in downtown Kansas City. On June 3 she was a bridesmaid when her brother, Ben, wed his college sweetheart, Heather Anderson. Bride and groom had just finished their first dance at the reception when the DJ announced to the crowd of about 250 that a special guest had arrived. Elevator doors opened and a camera crew, a gaggle of beefy, good-lookin’ bodyguards and...