And here I was about to ask if he'd recovered from that battle with Gandalf in Moria... (sigh)

  and 

and you'd have been correct, that's where it came from

Damn, thanks for that folks and apologies for 'slight' delay in posting. Off to browse forum. Afraid have not been here since i joined and am generally crap at remembering how to find threads and forums etc.

Thanks again (belatedly) for friendly welcome