SJCWHUK wrote:
It all depends on whether you are permitted to enter the bus via
any door if you have a ticket that requires marking by the driver.

A travelcard holder may be permitted as they have a valid ticket.
If you have a single journey ticket that requires marking and you
enter by any door other than at the front and then fail to get it
done perhaps intent has been shown.

So how would you distinguish that from mere forgetfulness or being
distracted by other events? As far as I can see, intent has not been
demonstrated at all.
--
Richard J.
(to e-mail me, swap uk and yon in address)