Whether it's LPG or other chemicals, we work extremely closely with our customers to get the proper forecast, because that goes back into building the right infrastructure and hiring the right number of people.
Nothing comes on as a surprise necessarily. We work very hard, though, with some commodity groups, because during the winter period, they feel they need more cars and really it hampers the system at times, the velocity of the network, but it's pretty much what Joan said. It's not a surprise.