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Someone at work got a new office. He decided he wanted a second door and tunneled through the wall to make it.
(hexbear.net)
This wall was to the supply room with all of the uniforms and PPE. The building was constructed in the mid-20th century so it turns out it's full of asbestos. Thanks mole man.
Yeah, it sounds weird, but critical support to asbestos in highly specific occasions.