Topic: Sex (licit and illicit)
Easy 
No one likes to be the bearer of bad news. Not only is it unpleasant; it can be dangerous. Kings routinely used to kill on the spot hapless messengers bringing word of defeat.
Even so, most people still acknowledge that truth, however unpalatable, is preferable to illusion, however cheering. This is, after all, only practical, for the facts as they affect us have a certain implacable...