I won't stop my truck specifically for a can, but will always take one if I do stop for something else (ie grocery store, larger piece of scrap, etc).

Some don't bother with small stuff, but some do. Figure it is no different than picking up a penny while walking in a parking lot...You just got to wait to collect on that penny, though.



Just today walking out of Home Depot, picked up about a foot of insulated wire and a paper clip. It's free and didn't take me but half a second to bend over and pick it up, so why not?