At what point is it a tin-foil hat?

[laconicsax]

I saw a guy walking across a parking lot today with a large square of tin-foil taped to the back of his head. Does that count as a hat?

[MineralMan]

1. Nope. That's a protective shield against the energy projectors.

They're carefully targeted, so you only have to protect the targeted area of the head. Star Seed Transmissions, you see...

[Tobin S.]

2. Everyone knows the best way to intercept the alien transmissions

is with a square piece of tin foil taped to the back of your head. I know you "normal" people don't believe us tin foil hatters, but you will thank us when we save the world one day.