The glorious embarrassment of falling down the stairs and hurting your foot.
Added to which is:
Being on the phone with someone at the time of said fall. Knowing not only that they are probably laughing at you, but also that your silliness in not concentrating on the stairs but on the conversation (and the armful of washing on the other hand) is what caused the tumble.
Oh, and not being able to wear a sneaker on that foot. *curses*
Graceful, aren't I? *giggle*
- Tara