O'Neal maintained a high level of interest in the workings of police departments and became personally involved in law enforcement. O'Neal went through the Los Angeles County Sheriff's Reserve Academy and became a reserve officer with the Los Angeles Port Police. On March 2, 2005, O'Neal was given an honorary U.S. Deputy Marshal title and named the spokesman for the Safe Surfin' Foundation; he served an honorary role on the task force of the same name, which tracks down sexual predators who target children on the Internet.
Maradona had a tendency to put on weight and suffered increasingly from obesity, at one point weighing 280 lb (130 kg). He was obese from the end of his playing career until undergoing gastric bypass surgery in a clinic in Cartagena de Indias, Colombia, on 6 March 2005.