Rose had heard about the snow in the city, and decided to experience it for herself. Sure, it'd be a little chilly and there'd be the occasional bit of discrimination to deal with, but it was probably better than staying in the TARDIS and getting underfoot with whatever jiggery-pokery the Doctor was trying to accomplish.

Of course, now that she was in the middle of it, she was coming to regret that decision. The snowfall had been so bad that the city was coming to a standstill, and now some semi-competent burly sorts had set up shop next to the gates.

She was weighing the pros and cons of whacking a guard upside the head and making a run for it when a particularly fierce flurry sent her scurrying into the nearest shop.

Rose had the good grace to look sheepish as clumps of snow fell from her coat. "Erm... sorry 'bout your floor."