I got rear ended while at a stop light yesterday (in my car, not on my bike. THAT would have really pissed me off, I do love my V-Rex). I think my left foot must have whacked the car floor since it was a decent impact. No whiplash due to my Saab's fancy anti-whiplash headrest.
I have an aching left knee and an ortho appt later today. If this keeps me from cycling next week I'm going to be really irritated.