This is a classic.
A few years back in a HiFi - fair there was a seller who pushed these fist sized wooden blocks that were meant to raise the cables off the ground and therefore “prevent the Earth itself from tampering with the signal”.
So he was basically trying to sell very expensive magic wood.
Evil_Shrubbery@thelemmy.club 48 minutes ago
Yeah babe, my wardrobe is worth 100k.