Unless you met at a 9/11 truthers get-together, it's best to keep your ideas about government-induced tornados and false flags to yourself. Fringe political beliefs have a way of getting people to back away slowly from the wild-eyed, intense believer. Plus, expounding on a conspiracy theory will be a one-sided conversation where one person rants and the other says "Wow, that's a pretty interesting way of looking at it," over and over. Mostly, they're just being polite.