Baby trains of Sri Lanka

Sri Lankans tend to refer to local train services as "baby trains". These consist of a locomotive hauling one or two coaches running between a few towns and villages as a shuttle service.

Gyan Fernando's recent posting reminded me of this.
http://gyantrains.blogspot.sg/2012/06/railway-halts-of-sri-lankapenrhos.html#more

So it sounded ideal material for a sketch.....