I was living in the basement of this nearly 100 y/o building - facing the alley so things always seemed a little more dark and spooky. The day before I had dutifully washed my dishes and had them drying on a rack on the counter. This is important cuz they had been sitting there for 24+ hours (No heat issues, no slipping) when randomly one of my glass tumblers explodes. I think this is weird but think nothing of it until two more spontaneously shatter several minutes later. The unit also had creepy "moving" sink holes, ala every now and then my floor would dip/sink when walking over it but not always.