As stores gear up for the biggest holiday shopping day of the year, it may be easy to forget that Black Friday isn’t always a sign of holiday cheer. A new poll reveals personal safety inside stores and outside in store parking lots is the No. 1 holiday safety concern for Americans – particularly women and seniors.Nearly half of the more than 800 respondents (49 percent) who participated in a national survey reported that personal safety in stores and parking lots is their primary safety concern this holiday season.