A bit off subject BUT have you ever been in the bathroom on an Amtrak train? When you flush, a plate swings away from the bottom of the throne and the waste is flushed out onto the tracks zipping along below the car. I was amazed, standing there watching those RR ties flying along at 30 MPH. Then the sign above the pot made sense, "DO NOT USE THE TOILET WHILE IN THE STATION". I vowed then and there to NEVER walk the tracks again. You may want to clean that spike first....
john