By the way, it isn't "Your haven't the brains" but "You haven't the brains" so before telling someone that they haven't the brains, I suggest that you check your spelling so you look as though you do have a higher grasp of what you are talking about.
By the way, it isn't "Your haven't the brains" but "You haven't the brains" so before telling someone that they haven't the brains, I suggest that you check your spelling so you look as though you do have a higher grasp of what you are talking about.