I've never been on a runaway train, but I think I know what it feels like. It's exciting and frightening at the same time. Or maybe it's just exciting! Until the big smash at the end. Or maybe it's just terrifying and there's nothing exciting about it. Actually, I don't think a runaway train is really the metaphor I'm looking for here. Things I nearly always skip on other people's journals: memes, dreams, tv program reprises, and apologies about how busy people are and how they don't have time to update and don't know when they'll be posting, etc.