Look; if you're reading our site you probably already have a strong distrust of the relatively normal people around you. And we don't want to feed into that anxiety because, for the most part, it's just all in your head. But, hey, sometimes it isn't. Sometimes that person you accidentally bumped into, while appearing as a mild-mannered citizen to everyone around them, is in actuality a crime-committing psychopath.
Enjoy the rest of your day!