The secret formula for WD-40…

The secret formula for WD-40 is stored in a bank vault and has only left it twice; once was on its 50th birthday when the CEO of WD-40 rode through Times Square on a horse with a suit of armor on and the formula in hand.

It was originally developed to repel water from the surface and components of Atlas ICBMs to stop ice buildup while on their way to their targets, which is why it’s guarded. It’s name means “water displacement, 40th attempt.”