"Bernard Madoff, who is serving a 150-year sentence in North Carolina for running a fraud scheme that cost investors billions of dollars, was physically assaulted by another inmate in December, according to three people familiar with the matter.... The former inmate said the dispute centered on money the assailant thought he was owed by Mr. Madoff.... Mr. Madoff spends free time in the prison library on the weekends and often watches movies, including 'Lethal Weapon,' according to the former inmate. He said he chatted with the admitted Ponzi schemer on Saturdays in the library and asked for financial advice: 'He gave me ideas on my index funds.' Mr. Madoff advised him to diversify."