Stuck in a jam watching the heroes of Calais

Later, heading back to the ferry from Calais, we are stuck in traffic. Trucks are lined up in queues in the back roads near the port, stationary in the traffic. Groups of young men from the Jungle migrant/refugee camp are, in the bright evening sunshine, trying to board the lorries, right there in front of us, all around us.
They are not threatening — they appear good humoured, astonishingly, given the desperation and hopelessness of their task — because every lorry is locked tight. Impenetrable.