

Adventurers come across a couple skeletons covered in what looks like a small, brown blanket.
Upon investigation, the blanket is a solid object that does not easily move, and doesn’t bend. It is made of rusted metal.
Previous adventurers succumbed to a nasty Heat-Metal spell trap or cast from an enemy, which melted their metal armor over top of them.
For me, the scary part is the realization that so many people are blind to this and think the world is actually getting better.