Bet you probably did not know this about Arnold Schwarzenegger

He first picked up a barbell at the age of 13 and chose bodybuilding as a career at the age of 14. He was so dedicated that he would break into his local gym at the weekend, when it was closed, in order to train. During a year of national service in the Austrian army he went AWOL during basic training in order to attend a bodybuilding competition. He spent a week in an army jail.