test is a solid enough one in my eyes. you can put someone under quite an amount of pressure that way and also induce tiredness pretty quickly. its at that point you find out how safe someone is going to be.
are they going to start swinging wildly or will they tighten up?
where is the weapon as they turn? is the tip out of line of sight? is it too high or low?
when it comes to unusual weapons i think if you havent come across it before and you are uncomfortable about the glean in the eye of the holder then a swift about turn is the wisest option. is it 