We are all aware of Murphy's Law. But there are others. One of my favorites is Horowitz's First Law of the Admiralty: A collision at sea can ruin your entire day.
No matter when you last filled it, every grease gun is just a few pumps away from being empty.
And he said, "I want to live as an honest man, to get all I deserve, and to give all I can, and to love a young woman whom I don't understand. Your Highness, your ways are very strange."
"If you push something hard enough, it will fall over" -- Fudd's law of opposition, which, according to Firesign Theater, led to the invention of the motor-operated pushover.
Devoured by giant spiders without benefit of legal counsel isn't called "justice" where I come from!
-Amazon Women On The Moon
From a knife sharpener, a Persian proverb, vaguely remembered: "A blade is not satisfied until it has tasted its owner." (Think about it -- devious wisdom here.)
When I was a CEO, that was a phrase I would pound into my new managers. ...not to get them to stop good deeds, but for them to realize there might be unintended consequences.