Don't try this kind of thing in London. There is a zero-tolerance policy in place on public transport, not just for intentional fare evasion, but for honest mis

Don't try this kind of thing in London. There is a zero-tolerance policy in place on public transport, not just for intentional fare evasion, but for honest mistakes including getting on a train at the wrong time or sitting in the wrong part of a train, even if no other seats are available. Even problems with the ticket barriers are the responsibility of the traveller, not the train company. And repeat 'offenders' can end up with a criminal record.