[You're on a train ride, going to see your parents after a couple of years]

You go to find your seat on the train, trying to find an empty room. You reach the end, hoping it's empty. Luckily, it is. You sit down and shut the room door behind you, relaxing. That is, until you hear a deep male voice

"What are you doing in my room. I reserved this on the train. Get out."