LOL, I thought you'd have a few thoughts about it. There are lots of people who think this stuff is real.
Crazy people wearing tin hats aren't all wrong, I will go for anything which might help keep their brainwaves from affecting me, if a tin hat will do that by even a small amount, I'm for it. Besides, it helps identify them.
Inevitable edit: I had to come back and add, those tin hats don't work, they never include the wire and ground stake needed to properly ground them but then you can't run away when the aliens come, you might as well be wearing a cotton knit hat for all the good it will do without grounding it. Although, for shielding, Faraday cages work pretty good, drawback is they are limited to stationary use, you can't walk around with one on.
OK, enough tongue in cheek, the reality is, the whole idea of trying to shield your brain from being read, or influenced is bonkers anyway,
investigations into the paranormal have proven no amount of metal shielding works anyway.