What came through our ceiling? After several calls back and forth with the leasing office, we learned that it is leveling compound from the bathroom floor upstairs seeping through our bathroom fan.
Apparently our man Sam Hill "knew that it would happen" and will "be by Monday to clean it up." Ain't it loverly? That is certainly not the way I would have handled the situation, if I were being paid to remodel the bathroom. Also, we just have self-stick vinyl tiles in the bathrooms, so I don't know why a hard, level, poured substrate would be necessary anyway. I guess that's why our man Sam makes the big bucks.