Yesterday a driver I know had a really rough day !!! While backing into a dock, he somehow got in crooked and he punctured his fuel tank on a guard rail that is there. Anyway, from what I was told, they tried desperatly to stop the fuel from flowing out of the tank.... They lost a lot of diesel that got out and went into a nearby stream. They finally got the leak stopped with a toilet bowl WAX RING......I am going to Home Depot and buy a wax ring and keep it in the truck.I hope he dosen't lose his job over this incident.