If it wasn't a good day for Jesus or Tupac, then I think we should all beware. In fact, a lot of really awful things have happened on Friday the 13th, and per CNBC's citation from The Stress Management Center and Phobia Institute, "It's been estimated that $800 or $900 million [U.S.] is lost in business on this day, because people will not fly or do business they normally would do." There's even a term, paraskevidekatriaphobia, for people who fear the day. Although its exact origins are unknown, Friday the 13th's associations have been largely negative in both religion and popular culture, and you know it's at least partially evil if Hollywood decided it was a good thing to capitalize upon.
Why take the risk? Lock your doors and lay low—unless your house is built on a fault line...
Like we really need one more esoteric, unsubstantiated reason to be paranoid—look, there are plenty of real, current-day situations that should make us shudder, and a Friday that happens to land on the 13th of the month is definitely not one of them! Any unlucky or tragic outcomes that transpired on a Friday the 13th are nothing but coincidence, and we should consider any superstitions around the day as just that. Per Vox, "There’s no compelling evidence that anything historically bad ever actually occurred on a Friday the 13th to give rise to this superstition. So there’s no need to fear the day, or to refrain from doing any of the normal things you’d otherwise do."
So relax, adopt a black cat, walk under some ladders, and open an umbrella indoors—at your own risk, of course.