I think the aliens got him!
He used to cycle regularly. I had ridden with him on numerous occasions and there was lots of photographic evidence about his exploits on the forum. This suddenly stopped and now he blinks sideways in a most disconcerting manner. He also flicks out a long lizard like tongue to lick his lips, eyes and ears whenever he sees or talks about plump pigeons
My theory is that he has been kidnapped by extra terrestrials and replaced by an alien in a Potsy suit. In fact I think there may be two of them in there, big ones!
The truth is out there......