Pandora's box

He told Fox News it was a "Pandora's box" because Putin's isolation would increase the pressure on him.

“I think it would open a Pandora’s box. It’s a very important rule that should be maintained. It has been broken once or twice; it should not have been.”

Ukrainian President Volodymyr Zelensky said the call was a “Pandora’s box” and argued it weakens Putin's isolation.

“In my view there is a grave danger that if you once open Pandora’s Box shutting it will be impossible.”

I get that now, after wandering around the New Mexico town that is synonymous with clichés like “cautionary tale” and “Pandora’s box” and “be careful what you wish for.”