The ENTIRE bookcase of Psychology, Sociology and Religion books had fallen forward, dumping all of its contents, pulling some Metaphysical books out on the way down and coming to rest on a shorter bookcase. I've spent much of today pulling books out from underneath, stacking them out of the way as best I can, and trying to get the bookcase back in place. I don't know if it will be able to perform its Job Duties any more. I'm not even sure what failed and allowed it to dump its contents.
But I am very glad it happened when the store was empty, and not when there were customers standing in that section.