 It's six minutes past six, GMT. Welcome to Weekend from the BBC World Service with me, Julian Warwicker, coming up a little later this hour, the joys of learning a new skill later in life. Our reporter tries out surfskating, the art of surfing on a board on skateboard wheels. The way we would work out is that if I give you a little push from behind and you stumble and catch yourself, you'll naturally fall into your most comfortable position. Ready?