See those big, inviting piles of leaves? Don't run over them. No, not because it's rude, but you don't know what's underneath them. One year while cruising down a local road, I saw a kid emerge from a similar pile, holding a squirt gun. He was completely hidden from his friends (and motorists), and had I plowed through the leaves, it would have been a huge hassle to bury the body and witnesses.