Cosmic Chaos Button.

 8:35AM (MSK), 800 feet below a certain radio tower in Moscow, two husky, white bearded old men stare piercingly at a big, almost comical red button. They seem excited, but slightly anxious, both their expressions like that of a sex offender disguised as a mall Santa right before a kid sits on their lap.

"So this is the button?"
"Da."

"You sure?"

"Da!"

 They press the button. The pressing of the button is immediately followed by a series of somewhat random events, all varying in scale and nature, but same in the fact that they break the rules of physics understood by the general population.