emotions?

I have a strange reaction when bad things happen to people. If they aren't family or someone I really care about (which there aren't a lot) i feel happy. I'm not sure if it is because i'm glad it didn't happen to me or because I feel better somone is in pain besides me. When I read a book or watch a movie I am more sensitive to what happens to the characters in the story than what happens to real people going through the same thing. Maybe I just take pleasure in the pain of others but only when it's real. strange but I'm sure it means something I'm just not sure what.