hot-headed, was impetuous in some ways. he would throw people off the podium sometimes when he was in the african youth league. and prison makes you have to control everything about your thoughts, everything about your behavior. you've been in his cell in robben island. you have to control your movements because you can barely move around. prison i think was the cruicifa. it was like putting a mike on a statue when i interviewed him. i've never known a human being being as still as was. i think that comes in prison when you have to control your movements at all times. >> a number of people who spent time in prison with nelson mandela, one of them is here.