A long time ago I was delivering TV's and vcr's along with appliances. One day I was delivering a console television to a little old lady who lived alone. As she was directing us to the room where she wanted it set up I couldn't help but notice how immaculate the front living room and rest of the house was. Like a showcase, everything perfectly in place. We put the tv in a back room that was set up like another living room, except this room was different. Neat, but lived in. I also noticed how dark it was. Aluminum foil was lining every window of the room. As I started to connect the cable to the set she exclaimed "No! That's how they get in!" She just wanted it plugged into the electrical outlet and that's all. She politely paid for the set and we left. Just figured another crazy lady and forgot all about it.
Now fast forward a couple of decades and here we are with the internet, satellites, smart phones and smart TV's. All these gadget with two way cameras and instant transmission of images and data. Facial recognition, surveillance cameras, body scanners etc.
I'm beginning to think that little old lady so many years ago might have been on to something. I think I'll use heavy duty Reynolds Wrap foil for my hat. Shiny side out, of course.