Um, my wife a had a patron come into the public library where she works wearing a foil lined hat because the governmant was listneing to his thoughts and trying to brainwash him - no lie.
Hell yeah !
I can assure you with no reservations, that the foil hat works just as well to stop brainwashing attempts as it does to prevent electromagnetic damage
There are many uses for the foil hat that the government does not want you to know about. If you hook up rabbit ear TV antennas to your foil hat you can pick up radio waves from the planet Meepzorp, and the government sure doesn't want you doing that. Of course you have to make a filter from a sardine can, but that's easy. I'm telling you that's what this big TV digital to analog thing was all about , and cable TV too. The government wants you to get rid of your rabbit ears. It's just a matter of time before they ban aluminum foil too. It's all just one big conspiracy
Rick