I was working days and I was a caretaker at the sh!tty 1970 particle-board-construction apartment I was living at. It was 2:30 AM and I needed to get to sleep. Sleep was almost with me, you know, I was right on the edge, when a washing machine in the 2nd floor laundry room in close proximity to my 1st floor bedroom started running. DAMN IT! I WAS ALMOST ASLEEP! The laundry hours of 7 AM to 10 PM are clearly posted in each laundry room (there were 6 in this particular building, 1 in each end of each of 3 floors). I grabbed my master key and went into the locked utility room where the "house" breaker panel was and shut it down. I was so pissed at the inconsiderate fool who would start a load in the middle of the night that I "forgot" to turn the breaker back on before I went to work.
Moral: Make sure that your 4:30 AM laundry isn't disturbing any of your neighbors.