I heard it slightly differently...
Apparently they had the starboard engine running and the Capt. was dealing with ground services/catering when the F.O. accidentally kicked the throttle getting into his seat. The handling agent and Capt. were then 'pinned down' by the aircraft as they attempted to stop the aircraft by pushing the nose (no parking brake/chocks??) and that the Captain is still in a critical condition in hospital!
Am hoping for his sake that this is rumour control and that it is indeed 'just' a broken leg.
Unlucky couple of months for Cirrus though, bet their client base is diminishing rapidly ....
Blu