The first time I came to the United States was in 1983 for a one-year host family stay in Rochester, Minnesota. Before leaving Germany, there was a weekend long preparation meeting. We were told we would feel homesick, that we might feel alienated and even experience culture shock. Throughout the weekend the instructors mentioned at least a dozen of times “whatever you do, don’t walk around the house naked.” OK, something to pay attention to I noted to myself. I arrived in Rochester after a v...