I'm driving down the road, and I see a small paper bag. I generally avoid ANY debris on the road, but I see plenty don't.
So, I got to thinking...if you want to have caltrops (spikes to pop tires) on a road, you'd want to disguise them, to actually have them work (otherwise, someone will just slam on the brakes, etc.)
So, if you had a board with nails sticking up, and put it in a crumpled up paper bag...this sitting on the road would likely be driven over, (thinking it's just an old fast food bag), when really, it would be a tire killer.
So, I got to thinking...if you want to have caltrops (spikes to pop tires) on a road, you'd want to disguise them, to actually have them work (otherwise, someone will just slam on the brakes, etc.)
So, if you had a board with nails sticking up, and put it in a crumpled up paper bag...this sitting on the road would likely be driven over, (thinking it's just an old fast food bag), when really, it would be a tire killer.