Stephen Dubner: Why do some people love horror movies? It is so gory, it has caused audience members to pass out and vomit. Angela Duckworth says she can tell you about horror films I've seen. Stephen Dubner: Horror film numbers are up lately over the past five or six years but they're still relatively low.
When are negative emotions enjoyable? Are we all a little masochistic? And do pigs like hot sauce?