Hogwarts

You have just boarded the Hogwarts Express at King's Cross Station in London, platform 9¾.

You didn't share a seat with anyone else, as you'd found a compartment just for yourself! And that was a good thing, because no one wants to sit with complete strangers on their first day...

But 30 minutes later, someone knocked on the compartment door. It was the boy who survived, and... some red-haired boy. They apologized and asked if they could sit with you, since all the other compartments were occupied.

The Boy Who Lived, or as he is also known, Harry Potter, began:

"Hey, can I sit with you? All the other compartments are full..."

The red-haired boy intervened:

"Yes, I promise we won't cause any problems!"