When I hopped on the bus, a tall man in front of me shows his travelcard to the card reader; he pushes a button to pay for his trip but nothing happens so he walks away (into the bus). I show my card — unlimited, pre-paid travel — to the reader, nothing happens, I grunt and walk into the bus. But the driver stops me, “it didn’t read your card.” I say “the machine must be kaput” but wave the card again and luckily it works this time. Why did he stop me and not the man who should’ve paid for his trip? I must look like a juvenile delinquent.

delinquent; juvenile delinquent — A person who neglects or fails to do what law or duty requires. A juvenile guilty of antisocial or criminal behavior.