This one nightmare I had earlier this year, I was in the woods and a bunch of people were being murdered (I watched from a distance). Then I walked to a ravine and a glowing red face was saying how it was going to get it's revenge on the world starting with the person nearest (being me). I thought "Oh [img]/xxx.gif[/img][img]/xxx.gif[/img][img]/xxx.gif[/img][img]/xxx.gif[/img]" and woke up.

Anything possibly worse than that is me being stuck in a big mansion with a group of people who were slowly being hunted down or cursed one by one.