Came back very late one night after spending two weeks on Maui in February to find that the furnace in the house had shut down while we were away. The temperature in the house was about 45 degrees F. We were lucky not to have had any pipes freeze and/or burst along with it. My family of four at the time spent the night in the smallest bedroom in the house with two electric space heaters blasting away. We were extremely fortunate to have been able to find someone who was able to repair the furnace the next day.
On another occasion we had been out of town for the weekend, and returned to a house with no power or heat. The temperature was below 60 F in the house that night, too. All the neighbors were also in the dark. We were trying to find a hotel to stay in, but anything in the area had lost power, too. I was about to pack everybody up and head out to spend the night with family well to the north when the power came back on.
My brother spent a couple of weeks tearing out all the carpeting downstairs in his house and installing a new hardwood floor. Just after finishing, he'd gone away for the weekend and returned to find that his fridge had died, and leaked water all over the brand new floor, warping it beyond repair. 