Bloke that looks like a thumb

That's kind of like saying that epileptics just stand around starting at flashing lights too often. There are people who have bio-matabolic conditions that pre-dispose them to weight gain, sometimes to a high level. I realise that these people are in a minority, but they do have reasons, which are quite different from excuses.

but none of them ever live were food is scarce and excercise is the norm