Is it normal to talk alot about tragedies?

I feel like Debbie the Downer from SNL. For some reason most of my conversations are about tragic stories. I really don't understand why. I don't know if I got this from my dad. He would always be watching the news and hearing the radio news at the same time. And to him everything was bad. I really don't know what it is. And I consider myself a normal mother of three. But Im somehow attracted to shows like A&E investigators, Autopsy,faces of death, E True Hollywood stories, and ofcourse CNN. And if I buy the news paper it's mainly to see the obituaries section. What's wrong with me?