In message , Paul
writes

At lunchtime on Friday 17 February I was on a 38 bus heading from Victoria
to Clapton pond. A male boarded the bus at Hyde Park Corner by the last set
of doors. He did not have an Oystercard.

(...)

Any comments?

Have you considered that he might have had a OTDC, a bus pass, or a
single journey ticket purchased from the machine at the bus stop?

Not everyone uses Oyster!

--
Paul Terry