Well, I think that most of the people are interested in bad news because some of them like to hear that someone is hurt, or I don`t know. But if they hear a bad news which involve them, they start to cry and ask: "Why is this happening to me ?!" , and when they hear that you`re hurt, or if they are your "enemys" they`re glad when they see you crying. And if you`re nervous, they`re teasing you till they see that you`re at the limit and you are about to start screaming at them: "leave me alone".
And what can I tell you about those people? If for you the most interesting hobby is photography or the collection of stamps, than for them the most interesting hobby is: " I like to hear only the bad news".