any thief will tell you they line their bags with aluminum because it blocks eletromagnetism
You can even buy aluminum lined wallets now so youe can protect your credit cards and such from theft of information.
This is all a non issue though, since everybody knows the"grays" don't use elctromagnetic energy..but some other kind..based on light particles
“Whether you sniff it smoke it eat it or shove it up your ass the result is the same: addiction.”
― William S. Burroughs
(love&forgive yourself..and everyone else)