I am pretty sure I have shared this story before, forgive any redundancy.
It was SPAH, probably 5 or 6 years ago, a slow day, and the Japanese representative was going through the display harps in our glass case, liberally applying slide oil.
I finally spoke up, saying, "What are you doing, we don't do that", as I had been advised by Daron that not only did we not sell it, we don't use it unless we have to.
The Japanese contingent convened, and when they returned, they told me, "Is necessary for proper function".
Well, shut mah mouth. I am not going to tell the parent company reps what to do.
Since then, I have loosed up (good Lord) on my use of the juice.