On Apr 20, 4:51*pm, Ian Jelf wrote:
I've always wondered about that last point. * Do you touch in at all
(and the touch in is "ignored" by the system) or are you not required to
touch in at all?

I've never sure, so I just wander on without looking at the driver or
touching my card. They never seem to care.

(and in fact the last time I got one we were encouraged to board via
the middle doors)

On the rare occasions the Heathrow Express substitutes for the
Piccadilly Line, the conductors are instructed to only see you have an
Oyster card.

U