New York (BBC): A man once dubbed the world’s fattest has said having a fiancee has given him new responsibility and fear as he waits for life-changing weight loss surgery . Paul Mason, 54, from Ipswich, used to weigh 70 stone (440kg) but has lost about 45 stone (285kg). Mr Mason, who hopes surgery to remove excess skin will shed seven stone (44kg), is engaged to Rebecca Mountain. ‘I am really worried, because I’ve got a little bit more responsibility this time,’ he said. ‘I just can’t wait to get over the recovery period.