Had a few problems over the last thirty years, police called over at Brighton, when the gate guardian thought it was a fake. No such ticket could exist. Asking for my photo id card a couple of times on GWR. And refusal access to a couple of lounges. But on the whole they are great fun. The look of horror on the guards face, when 50003 blew up in spectacular fashion near Honiton, where are you going? Fort William! Credit to BR, they met me at Waterloo with a minibus, fast drive to back entrance at Euston, escort onto the train which was held for me.