Bringing dc to school this morning, got on train when man and his dc appears at door and asks if we're going to our school. I said we were and he says can you take my dc. Being a people pleasing fool and stunned I said yes and proceeded to take his dc on short train trip and five min walk across very busy roads to school. Am still annoyed this evening, had never spoken to the guy or his kid before, he just handed his child over to a complete and utter stranger!