The Economist writes about who’s wrong when flyers end up in the wrong cities. This has actually happened to me! Probably 7-8 years ago, it was an Air Canada flight from New York to Montreal, and I accidentally boarded the one to Toronto. The mistake was realized when we were on the ground, but had pulled away from gate. Being Canadian, they were exceedingly nice and asked me to stay on the flight but they’d find me one from Toronto to Montreal after I landed.