I think I'm the worst rules lawyer I've ever seen. Granted, it's been years since I've gotten to play, so that's not saying much. And there's only been one real instance of it. Unfortunately, I messed that up (I remembered that Small greataxes drop a damage die, and reminded the DM when one of the kobolds hit our rogue. Checking the SRD now, it turns out he had remembered, it's just that small greatswords and greataxes break the normal damage scaling rules of 1d8<->1d12/2d6 for now reason, so what looked like a minor rules gaff was actually the DM doing his job).