Well, I have not yet injured myself falling over a cat, but it's only a matter of time (especially as they demand breakfast by winding round my ankles at the top of the stairs). I almost fall over them on a regular basis - on the last occasion I emerged unscathed but unfortunately the wardrobe didn't.

You may need to keep the dog in the story for verisimilitude. Perhaps you were heroically saving the dog from ... erm ... well, the only thing I can think of which is both likely to be lying around and dangerous to dogs is chocolate, which doesn't add to the heroic effect, really.

It's an excellent opportunity to make someone a blackboard monitor, though. Bonus points if you get them to bring you coffee, too.

Hope it feels better soon!