Mark Johnson will get to caddy for him for one day
                                
                                
                                    (Newser) -
                                    For more than 200 days, Spanish golfer Sergio Garcia was the subject of a relentless Twitter campaign from a persistent fan. Mark Johnson, a 40-year-old Englishman, just wanted one thing: To be Garcia's caddie for a day. Using "#Letmecaddieforyou," Johnson sent Garcia a daily tweet—some funny,...