The diss chapter that I'm working on right now is on parody, so of course I'm browsing through A Tough Guide to Fantasyland. One of the entries is on "Gestures": specifically that Mages are given to exaggerated gesturing when casting spells. Recently, I read Melissa McShane's Regency fantasy Burning Bright (which is really super, by the way, and I thought its sequel was even better). There was a scene there, involving a night-time naval battle with fire-wielding magic users on both sides attempting to set fire to their respective ships and, if it was possible to determine which of the shadowy figures on the enemy ship was the magic user, each other. The less experienced and rather showy mages on our heroine's ship used gestures, which our heroine quickly realized made targets of themselves, and she snaps at them to stop it. I wonder if McShane has read DWJ? (I think it's likely).