Grade: 3
Sesamoid Fracture of the right foot: Lost my purchase coming down a steep pitch on north backbone trail. Attempted to "not fall down" but instead put all my gravitational force on my foot as a last second emergency break.
UPDATE: Yup, I broke it alright... out for a month. Should have been out a bit longer, but couldn't resist. As of September 3rd I still have pain, a dull ache really, when I over work it.