  Watched Seb's appearance on Letterman last night. It's been a long time since I've seen his show, holy cow does that guy interrupt EVERYTHING!  I couldn't put it better than WTF0 on twitter:  So tell us about Karting. "Well I..." How old were you when you started Karting? "I was 0 and.." Tell us about Schumacher.  How is Letterman still on the air? Granted, I've never found his brand of humour engaging or provocative (including the "Top Ten" list segment), but his interviewing skills are terrible; if I were a guest, I would be annoyed to no end. Vettel may not always be likable, but he handled himself well and I'm sure his charisma carried over to the audience.  How is Letterman still on the air? Granted, I've never found his brand of humour engaging or provocative (including the "Top Ten" list segment), but his interviewing skills are terrible; if I were a guest, I would be annoyed to no end. Vettel may not always be likable, but he handled himself well and I'm sure his charisma carried over to the audience.  