Madame!! HAAAA!

I don't think Kirstie is either a) too bright or b) too questioning. She's the type that when told something outlandish that is clearly meant to be a joke, she says "Oh really? I didn't know that!" and the joke teller has to say "It's just a JOKE, Kirstie! Sheesh!" But then she probably walks away from the conversation still not believing it was a joke. Then she Tweets about it.