It was a cold, dark, wintry night in October 2018 when Katrina Burchell was commuting from her job as a solicitor in London to her home in Hertfordshire. Burchell, feeling tired and confused, accidentally boarded the wrong train and when it reached the end of the line in north London, she found herself alone on a dark platform, miles from home.
“It was the third night in a row I had got on the wrong train,” she said. “When I eventually stepped off the train I was completely lost and confused. The train driver took one look at me, and realised something was wrong.
