DEAR HARRIETTE: A friend came by to visit me the other day, and the whole time she was coughing. It was strange, given how hyper-vigilant everybody got about wearing masks during the height of the COVID epidemic. When I looked at her funny after she kept on coughing, she assured me that she doesn't have COVID. To me, that doesn't mean you should continue to cough all over people.
After a bit, I mad…