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.
Which other laws of life can you share?
To be is to do …Kant
To do is to be ..Nietzsche
Do be do be do…Sinatra
Scooby dooby do …St. Thomas
"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.