Anything at all. Serious or not. Doesn't have to be in your own society either. If a biological male says they now identify as a female and wishes to be treated as a female, that is fine. However if they still have their meat and two vege and want to be known as female, i have a problem with their commitment, or lack of it. Those people will not be tolerated. 1/ So i'd introduce a law, 'if you have a cock and bollocks you will NOT be treated as female, no matter how many times you shave your legs.' 2/ All dogs shall be muzzled while they are out in public.