Not that I disagree with your point, but that is a terrible way to bring it up. Far more people drink champagne than swim around, near, or at sharks so it's a logical fallacy to suggest shark diving is safer than drinking champagne.
I wasn't suggesting that opening a champagne bottle is more dangerous than swimming with sharks (and we would have to be talking about swimming with the 5 or 6 species out of the 450 or so total shark species which are considered dangerous to man). The point was there are seemingly innocuous everyday things that kill more people than sharks do. The public's fear of them is wildly disproportionate to reality.
Joe