Thank you, Senator Macdonald. I am endeavouring to deal with that matter privately before I bring it back to the Senate. Developments this morning prevented me doing so. I intend to do so later in the day, so I may have something to say later in the day or tomorrow. Senator Macdonald, I think it is fair to say your point has been made, but the wearing of a sign—in any form, in my view—is contrary to the rulings of myself, former President Parry and others. I intend to speak to senators involved, including yourself, Senator Macdonald.