Brian: Over the last week I've been depressed.
Annie: I eat yogurt.
Me (with completely puzzled expression): What has that got to do with what he said?
Annie: I'm so sad because instead of eating ice cream I have to eat yogurt.
Me (with the resigned tone of knowing that's about as good an explanation as I'm going to get): Oh.
It's good to have Annie back in the fold but it's going to take some time getting used to.