Mystery solved. Just when I was about to throw them out for fear of poisoned injected into their centers -- a classic trick -- and start freaking out about stalkers. An old grad-school classmate and colleague of mine from Roumania -- grew up under Ceaușescu. The poor thing got out of Roumania after Ceaușescu fell, earned a Ph.D, a tenured position at a university, and US citizenship after years of struggle and poverty -- and is back there now in a tiny village, taking care of her old mother, who refuses to come to the US. It's a sad story. And she should be sending me presents!?!
Yesterday I met with a colleague in the afternoon. We shared space face-2-face for several hours, working on a project, maskless. It was only the fourth time I've talked to someone other than my husband in the flesh, without a mask, in 6 months, and the first time indoors. It was so good.