Good.

All right, so once upon a time there was a huge museum. Two really ambitious thieves dreamed of bein' the best the world had ever seen, so they knew they had to take something big. A museum sounded like a pretty good idea, so they cased the place. Except there was too much loot and they'd have no way to fence it all. But they couldn't just give up, so...

[He's embellishing a little, because Isaac and Miria hardly put that much thought into it. He pauses before the punchline, remembering how annoyed he'd felt hearing the story from them. He's not even sure if it's true, but at least it's off-the-wall enough that maybe it has a chance of amusing her.]

So they stole the door. To keep everybody out.