Professional skydiver Michael Sergio was hoping to drop in at the 30th anniversary of the 1986 World Champion Mets Saturday evening. Alas, he wasn't invited. Sergio, then 36, thrilled the Shea Stadium crowd -- but perhaps not so much security and Mets management -- when he parachuted onto the infield at the now-demolished ballpark before Game 6 of the World Series against the Red Sox.