Remember kids... always wear a helmet. (The almighty bikeradar helmet thread)

Hmmm..... not looked at it from another road users point of view....

"A recent study in England has indicated that automobile drivers drive more dangerously near bicycle drivers who wear helmets than near those without helmets. See http://news.bbc.co.uk/1/hi/england/somerset/5334208.stm Another observation in the study is that car drivers give long haired girls more leeway than other bicycle drivers."

sure, but it's mostly the drivers who don't see you that you have to worry about.