Sheesh. Time to give this node a sense of sanity. This saying was around a lot earlier than dannye and his anti-PC campaign would have you believe. I'm not going to split political hairs here, but I know my dad and his family used this expression back on the farm (read, before Greenpeace was ever in existance) and it was a general rule of thumb that was reserved for time when the power went out, because flushing the toilet requires what little water pressure was left in the tank. This was a time when you could go for days without power, and that water pressure was to be conserved.