Epicentre wrote:

Surely it has to be this way! The ticket remains the property of the
issuing company, so if LU take NR tickets, they are effectively taking
what is not theirs to take.

Really? So the handful of LU and NR tickets that I took as souvenirs
are stolen property?

I once found a Travelcard on a MetroCard reader in New York. (It had,
unfortunately, expired.)
--
David of Broadway
New York, NY, USA