I was sitting in a room that was a study / library area. The next room over was for making copies, had a copy machine. One thing about emergency assent is that if anyone forgot to fasten anything down securely prior to the sea trial it will become obvious while during the EA. The EA was in progress, when from the copy room came the sound of a large crash and breaking glass. Once everything settled down on the surface, one of the crew emerged from the copy room, black from head to toe with toner from the broken copy machine. Looked like something out of an old minstrel show. Very funny, except maybe for the guy who forgot to tighten the retaining nuts!
Lots of things can go south then.
Books not properly secured can hurt when hundreds of pound of them come flying at you.
Toilet water flows out of the bowl, which is why you're not supposed to have water in them until you use them.
Kool Aid can flow out of the "bug juice" machine if whoever makes it forgets the floor makes angles.
(not my pic)
Image if this had been filled higher.