We've all had that moment the morning after a drinking session where you wake up and can't quite remember some of the events of the night before.
Most of the time, it's harmless. You might've said something silly to a work colleague, or maybe you slipped over while trying to order something in the chipper.
But we doubt that you've ever tried to spend €5,000 on a taxi after a night out, no matter how far you've been from home.