When i was 16 i saw a guy who worked with my father and this guy was about 5,11 and not a pound under 250 lean, My father told me he never worked out he was just insanly big,He was of Maltese extraction.
As a bouncer i also new a work mate that was 6,2was one of the widest individuals i had ever seen and never picked up a weight in his life he was not an ounce under 280 as i was 270 at the time.
There are mutants out there and tell us a story about them, if you have met many.