Don't let them "steal your joy"

Why do people try to "steal the joy" from other people? If it makes them happy then why do they care? From "your point of view" you see things in a positive way yet there are those who insist you see it their way and they suck the joy right out of you. Even worse when they convince you that their is a negative point of view that brings you way down they smile and say "things aren't as bad as they seem" as if they suggested a positive view to it. People will "steal your joy" and suck the life out of you if you let them. Don't let them "steal your joy!"