Wait for train.

You stand on the platform and read the incredibly insightful advertisement on the wall opposite (those international phone call charges just seem to get lower all the time). Unfortunately, by the limping footsteps you hear to your right, you're about to be joined by the man with the injured leg.

Just as you're on the point of casually sidling a few steps further away, you hear two other things: an approaching train; running feet, coming from the direction of the escalator.

"Please - take this", says the man, in an American accent. He proffers the package, which looks to be a painting wrapped in brown paper.

You can:

Get on the train the instant it arrives, still ignoring the man.

Accept the painting and board the train.

Wait a moment to see who's running round the corner. Well it could be the police!

Tell the man to stop bothering you.