The first sentence of the biiography reads
Clarence was previously a sentient ship known as !C-Mel, but due to an 'accident' which for much of his life he couldn't remember the specifics, but did know that it had involved the Doctor.
It seems to me that there is a missing clause here which covers the effect of the accident. It looks like he ceased to be a sentient ship, but would some one who knows what that clause should be please insert it? Boblipton 11:58, July 26, 2011 (UTC)