Was not aware of that... on the other hand, nobody seems to be using poison so far (indeed, it's something I hardly ever see in fights), and even if they were, it would be possible to remove or destroy the brace.  It [i]could[/i] be a problem if someone came in with a character who made heavy use of, say, paralytic darts...  In the unlikely event that this happens, we may need to bring it up again, but I think it's safe to let it slide for now.