The other day I came back home and realized I forgot... my car.
I'm living in the suburb. I started taking courses at the university in Autumn. Before parking is complicated in the city, I was going by car up to the nearest metro station, where there is a lot of parking. Then a few days ago, I met someone who's living in the same town as me and going to the same course by car. All happy, I ask him to give me a lift. And he's all happy to have someone to talk to for the travel. And we're so happy to chat and all that I forget I left my car at the metro station! Fortunately, the parking is free and I had another course the next day, so I used the bus to reach the metro station, and came back with my car this time!