Just cuz yer paranoid......

[oscar]

http://people.csail.mit.edu/rahimi/helmet/

[Rob P]

Didn't either Homer Simpson or Bart Simpson wear an aluminum helmet on their heads so that the commisioner of baseball couldn't spy on them?

[crazyfish]

I find the Napoleonic hat design works best for me during the summer months, while the Dobbs Wellington Newsboy Cap design works great for the winter months. It's all in the angle of the sun and the bounce of the radio waves ya know.....