On Mon, 10 Mar 2008 14:48:23 -0700 (PDT), Offramp
wrote:

"6.6. Using a season ticket on your Oyster card
6.6.1. When you use London Underground, London Overground and National
Rail services, you must touch your Oyster card on the yellow card
reader at both the start and the end of your journey. If the ticket
gates at stations are open you must still touch your Oyster card on
the card reader."

While they might have a job prosecuting for that, they could certainly
impose a civil penalty (e.g. a standard fare), just as the operator of
a car park could impose one on someone who had paid for their parking
but omitted to display the ticket.

Neil

--
Neil Williams
Put my first name before the at to reply.