"Helmets look goofy - you look a little dorky. When you're the leader of the free world you have to look tough." - Paul Steely White, executive director of the New York advocacy group, Transportation Alternatives, discussing his theory for the reason President Obama was bicycling without a helmet during his recent family vacation.

Hey, I'm not going to tell the President what to do, but not wearing a bike helmet is a great example of a 'Happy Now, Sad Later' choice. I do a lot of bicycling, and I've heard enough stories of people being saved from severe head injuries by their helmets that I'll choose "dorky" anytime...

Tags: bicycling, safety, Obama