They actually aren't crazies, they are scrappers. They take anything with metal that can be scrapped for money. THey go up and down the alleys in mpls as well they can make pretty good money. I know this because I recycle my cans and my own scrap metal instead of throwing it out and I see them at the recycling place with trucks full of scrap. It's good for the environment and it's free money so it's a win win in my book.its a hayday for crazies with pickups/trailers. They drive through neighborhoods and take all kinds of junk off the curb.