Ha! (no, I'm an Audio Technician by trade)
I saw it coming from a short distance and was already holding my phone. I came out of text-messaging and went straight into camera mode, stepped into the road and just had enough time to aim and press T (to pull specific rather than generic focus) as it was coming towards me, the handset takes a moment to to this and the screen goes blank at which point I tracked it's movement and went straight into "take" before the image returned. (hence the loss of the rear)
the result is lucky...
I don't own a camera myself...
JimP