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As pointed out by Griff, this is the Lounge, not the Troll Pit.[^]
Did you ever see history portrayed as an old man with a wise brow and pulseless heart, waging all things in the balance of reason?
Is not rather the genius of history like an eternal, imploring maiden, full of fire, with a burning heart and flaming soul, humanly warm and humanly beautiful?
Training a telescope on one’s own belly button will only reveal lint. You like that? You go right on staring at it. I prefer looking at galaxies.
-- Sarah Hoyt
If they do nothing, and the warning turns out to be real - Burger King, the shift manager, and possibly the workers may be liable for injuries and deaths. The total compensation could add up to millions of dollars.
If they break all of the windows, the cost to Burger King is a few thousand dollars, and the workers get new jobs at the greasy spoon on the other side of town.
Given the (insanely) litigious nature of the U.S. citizenry, which would you choose?
If you have an important point to make, don't try to be subtle or clever. Use a pile driver. Hit the point once. Then come back and hit it again. Then hit it a third time - a tremendous whack.
Really? High School science is more than adequate to spot that this is a nonsense! No Burger King shop is a sealed container. There will be extraction fans in operation, the door will be either permanently or regularly open and so on. And what is breaking windows going to achieve that simple opening them can't? And wouldn't your suspicions be raised by an instruction to break windows that wasn't at least accompanied by instructions to evacuate the premises? In any case a kitchen almost certainly has carbon monoxide alarms already installed. And might you not take a second to wonder how the caller knows what the situation is in your store if they're not actually present? Why would they need to phone you if they had people on the ground who could just tell you in person?
There's absolutely zero chance that the staff were thinking in terms of law suits. It was simply a case of "Oh my God we're going to die!" Flying glass is hardly a lesser evil when it comes to potential injury or even death even if it's only to the poor sod that's swinging the hammer.
It should be staff training 101 to check the credentials of any callers. The simple expedient of calling the fire service direct or even just checking the number from which the call was received would have averted the whole thing and possibly led to the perpetrators being traced.
Sorry, but there's no excuse. The perpetrators relied entirely upon the stupidity of the staff and were richly rewarded for their accurate assessment of their intellectual powers.