So yesterday at work we had finished filling a tanker with waste water, and we needed to exchange tankers. Whoever parked the tanker originally, did not compensate for being on a hill beside some power poles. This led to some problems. For starters, when the driver got there to retrieve the tanker, we discovered one of the blocks was collapsed and the trailer was leaning a bit. He initially did not even want to try to get under the trailer since his truck had no air ride, but was prodded by his boss to do it anyway. Every time he touched the tanker, it moved closer to the pole. Eventually he had to call another driver, but before he got there, it got quite close to the poles.