Originally Posted by devildog2067
You understand the wisdom of that statement the first time you work on something that someone else wired up who never learned those rules.
It reminded me of seeing band in New Orleans, in a shady venue where the guy doing the wiring knew it didn't matter which side of the outlet you connected the white or black to. He didn't choose the same side on the outlet for the bass amp and the outlet for the PA. They took the bass player away in an ambulance - end of show. Surprisingly, not that uncommon.