"Clive D. W. Feather" wrote in message ...
Getting on the tube at Tottenham Court Road just now, I noticed that one
of the little advertisement posters had a small sticker on it, as is
sometimes done by protesters of various kinds.

Except that this one said something like:

Using prepay on your Oyster? Always remember to touch in and out
by putting the card flat against the reader.

Huh? Who would do this unofficially? Yet why do it officially?

Makes me want to go armed with big stickers reading "St Giles' Circus"
and correct the name of the station once and for all!