Just before 2PM today, I was walking the short distance from my den/office to the kitchen and stepped into a pool of water about the size a half-gallon of spilled water would make. I backtracked a few feet to the bathroom, and there was nothing overrunning or leaking there. Stepping over the water in the small hall and into the kitchen, the water seemed to have started around one corner of the refrigerator, which is next to the dishwasher, which is next to the kitchen sink. There was no pooling or overflow in either of those, so I zeroed in on something leaking from the frig, although both the main unit as well as the freezer were both running at normal temperature levels. So I called the maintenance man, who pulled out the frig. Again, no water beneath the frig. He even unscrewed the entire backing and again could find no leak. Nothing was leaking from the ceiling, and no water coming up through the floor. It hadn't rained since yesterday (and I would have noticed before now, if it had been caused by rain). We're both stumped. I'm curious if anyone here has any building construction or plumbing experience that might explain this phenomena. Without one, I have to conclude that I have a friendly ghost who likes to play tricks.