On Wednesday night I waited forlornly for someone to come to my door trick-or-treating. I live in a cottage community that’s largely seasonal in nature, and by now nearly everyone’s left and gone “home,” but I hoped there were still some kids in the neighborhood who might stop by.No one came. I ate a lot of chocolate.I was wondering later why I felt so deflated, until I realized it had a lot to do with homesickness. I grew up in France, and I listen to a French radio stat...