Adrian wrote in
70:

Martin Underwood ) gurgled happily, sounding much like
they were saying :

If he's already level with
me or in front of me, fine - he goes first. But suppose he's a second
or so later and is just behind me. Should I delay setting off to let
him overtake me or should he wait until I've turned? I reckon the
latter.

Indeed. If you're already indicating left, then he'd have to be
utterly stupid to pass you on the inside.

.... something that's never stopped cyclists trying to force their way
through in those circumstances!