@SecurityWriter Years ago in college, we were at a remote building that had its network service provided by the main campus. I knew something was up when Internet just went out mid-day.

Got back to main campus to learn that a water main breach in a building had flooded the datacenter in the adjacent computer sciences building, which happens to be where the whole campus's physical interlinks are. They'd heard a thumping coming from the supply closet and opened it... To a gush of water. The closet was semi-airtight because the room was rigged for halon flushing, and the thumping they heard was empty computer shells floating around and bouncing into the door...