You could really fuck some one up with one of those wheel shields too. I am imagining some shlep pushing mongo on a college campus. He starts going down hill into the quad. Then it gets too fast for him. He bails and eat a mouth full of dirt. His board keeps going and fucking collides with a cheerleader's ankle. Metal on bone! The wheel shield slices through her skin, so she's bleeding all over and her bones are sticking out. The other cheerleaders see the mess of blood and bones and they start puking everywhere. It's a pyramid formation of puking cheerleaders. Then the dean of students walks by and sees what's unfolding. He reaches for his phone to call campus security and the head nurse, but it's too late. The shock of the situation sends him into cardiac arrest... okay I'm done.