Suppose I'm a german man with my family who for some reason thought that winter break 1941 was the perfect time for a nice vacation to the USA. If war was declared while I'm there, would I be detained or allowed to return? Or worse, what if, for a last trip of my children's summer break 1939, we decide we want we've always wanted to visit warsaw? Would I be arrested once Germany invades? If we were to killed by polish, what would the german army make of us when were discovered during the occupation?