I have seen some of those guys also, really acting the fool, you need to respect the machinery or you will get hurt, they not only need a helment but body armour as well. I understand i was young once, my philosophy was, if you cant feel the wind in your hair whats the point of having a head, but many years later and not a whole lot of hair left i wear a helment. Except for when im just pulling stuff around the yard in a trailor.