Maybe it's because it always rains over there; the water soaks into their chins and has a wet-toilet-paper effect.:!:
You sound like you're in denial. When will you see the light? Some jaws are made of glass, and as a result can be shattered in spectacular fashion. :shock:
Another great video guys :good Brits have the worst glass jaws! A guest appearance by Amir Khan getting his jaw shattered would have been a nice touch.
This is also a possibility. A knockout can happen to anyone who gets hit hard enough. We don't call Ruiz a glass chinned bum, even though he got creamed by Tua in record time. Instead, we know that Tua was just an incredible puncher - who may have had one of the most devastating left hooks in history. So simply posting a bunch of guys getting knocked out doesn't prove anything. It could be glass chins, it could be monster punchers. It could be a mix of both. I'd like to see a more carefully considered argument put forth for each individual candidate, some careful testing and research with proper controls. Also, your study will need to be peer-reviewed. Actually, I think someone better than your peers will need to do the review, just for credibility.
Britain, due to it being an isolated island for much of its history, lacks sufficient genetic variation, so recessive traits get passed on from generation to generation, perhaps that could explain their susceptible jaws. I suspect, the royal family, due to generations of inbreeding may have the most fragile chins ever known to mankind.