Everyone's a jerk in their own special way. People like that can range from cutting you in line to stealing all your stuff in a video game to getting framed for a life in prison. There are several ways to combat the downers in life. You could, of course, fight back, but this is barbaric, hypocritical, and it ,makes you look like a jerk. You could try ignoring/avoiding people like that, but that sometimes never works. There are really only two good solutions to your problem. You could either surround yourself with friends and family who feel the same, or accept what others say or what else happens. Usually, if you hold your head high and think about a better future, you can take on anything. Life is only as bad as you make it.