Michael Jordan has always had to be cautious about true friends as many people seek to use him for his fame and wealth. Most of his closest friends are those he made before becoming famous, such as George Koehler, who provided personal car service to MJ when he was a rookie in the Chicago Bulls. Charles Barkley was a close friend of MJ during their NBA days, golfing and gambling together, but they fell out after Chuck criticized MJ's front office management skills on air. This led to a 15+ year silence between them, showing MJ's willingness to cut ties with those he perceives to be disloyal.