"Weapon! I need a weapon!" Dean, now defenseless, called out, ducking and covering and weaving to and fro to avoid being hit by a jinx, or worse, a Killing Curse. Casting about for something to use, his fingers closed over the first thing he found – which happened to be, of all things, a Muggle folding chair – and, hefting it aloft, he dashed forward and began beating McNair over the head with it.