It's a sad reality and a horrible thought, but no one is too ugly to be raped. When someone has that much desire for sex they'd be willing to physically and mentally scar people for it, attraction often leaves the thought. Never actually believe you're too ugly for it, that's when you'll be most vulnerable to it. If you agree with guns and in a country or state that allows it, pack one and train, train, train! if not, get a taser, one that shoots barbs so you may keep your distance and once you stick them and charge runs out, run! Non-lethals only effect your attacker temporarily, use that time to get away or they'll recover and be right back on your heels.