If you tap in and out on the same station within a few minutes, the system charges you nothing. It assumes you made a mistake. This is a loophole for people who walk into the station, panic, and run back out. Or for thrill-seekers who just want to hear the beep.
Also, children under 11 travel free with a paying adult. That’s not a quirky fact. That’s a glorious fact. If you’re a child reading this, congrats. You’ve won the Tube lottery.
The Night Tube Is a Different Beast
On weekends, some lines run all night. Buying a ticket then is surreal. The station staff look tired. They’ve seen everything. Someone might be holding a pizza box like a baby. Someone else might be singing opera. Your ticket is your passport to this nocturnal circus.
Quirky fact: The first Night Tube in 2016 was so popular that the Central Line ran out of trains. Literally. They had to borrow trains from another line. The trains were confused. The passengers were ecstatic.