I was coming home late tonight, so I was driving in the dark. I was on the back roads, so I decided to hit full-beam on the headlights. I didn’t encounter any more traffic until quite a while later, by which time I’d completely forgotten I’d switched them on. I approached another car and thought “hmm, he seems all lit up”, whilst at the same time the same driver is flashing his headlights at me. I got a bit further down the road before I twigged quite what he was flashing at me for…
It’s been a long day, OK!