Apologies if it's already been done.
INT. DAY. JAIL CELL.
MAN IS PEERING UNDER RUG IN MIDDLE OF CELL. THERE IS A HOLE IN THE FLOOR.
CUT TO MAN CRAWLING ALONG TUNNEL.
CUT TO EXT. AERIAL VIEW OF MAN DISLODGING MAN HOLE COVER AND PEERING OUT.
HE IS NOW IN A MAZE.
One of several potential endings, Nigel.
Write half a dozen variations, they might fit into a sketch series.
I like 
Cheers guys.
Yeah, Geoff's right here: write a few of these with him constantly trying to escape and ending up in different places that mean he go back. The last one he actually seems to have escaped but then something happens that means he does have to go back (chased by a bear or something).
Like the premise though
Dan
Reminds me of those 'Where's Wally' books, with the bemused characters finding themselves in odd situations. Simple and funny, I like it.
Maybe a few odd 'surfacings' where he appears in an aeroplane mid flight or on top of a sky scraper might appeal?
Thanks,
Andy