In the past, I have had many guests who just announce that they are visiting, and no amount of hints get through to them. I do like day guests very much, but not overnight guests, as I hate to cook. I am afraid that when the virus is no longer a threat, potential guests will resume their uninvited visits. Nor need you be defensive when guests presume to do so. Miss Manners has a few phrases for you to memorize:“I’m sorry, I’m not having overnight guests.