In keeping with the oil theme, from a horse ranch where I was.
The old horse trader (cheaper than Jack Benny, and the Code Enforcement Officer's best customer) that owned the place had a loadcenter with all
of the knockouts removed, outside on a pole, hanging from the straps on the service riser.
Years of weather, "horse pen dust" (manure) and acidic fragrance had done a number on it.
As he walked by at twilight, he saw some arcing from one of the breaker bus stabs.
He picked up a can of his favorite remedy, WD40, and sprayed it into the panel, hoping to improve the contact.
It improved the contact alright, well enough that the whole panel erupted into a fireball that lasted long enough for him to run for a hose bibb 50' away and turn on the hose.
He ran the hose on the panel long enough that it tripped the 100Amp Main breaker.
The fool, by no action of his own, miraculously was not hurt, other than some curly-qs on his hair and eyebrows.
The panel didn't fare so well. It was the blackest thing I've ever seen.