My this is a lively thread.
I think Neptronix's liberalism in regards to enacting laws is sound. Though I would be very much in disagreement that drugs harm no one other than the individual.
Where does cocaine or heroin come from? In places where people, many of them innocent, are dying because of them. I used to think that all drugs should be legalised and let the state control it and put the revenue in the public purse but not anymore. Fair enough with cannabis and mushrooms you can grow your own etc. but people who take coke and heroin have blood on their hands.
As currently one of the non-helmet wearing brigade, I wouldn't want to be forced to wear one. However, I would echo the sentiments of Neuvomexicano, Tony, Dogman and Auraslip that helmets make you safer. Unless someone has got cold hard proof (not evidence) as opposed to rationalistic and constructionist hypotheses my opinion will not change.
It would also be remiss not to point out that this notion of wearing a helmet/not wearing a helmet only affects the wearer/non-wearer is too simplified and often doesn't bear out in reality. The world doesn't work like that. If something happens to you - it affects other people too. You get injured as a result of not wearing a helmet you have to go to the hospital. Resources are taken up that affect other patients, in stressed places this could be very serious and even put other people's lives at risk.
I think you shouldn't rush to call someone stupid without knowing the full facts too. Many things could have happened him that we don't know about. He could have had a heart attack, a stroke, a migraine attack, being suffering from severe depression, fibromyalgia or a diabetes-related incident. We simply do not know what happened.