Airbnb chalet for a festival. My gf and I had the upstairs master bedroom and en-suite, with her friend and her new bf downstairs. After night one, her friend told us we were too loud. So, them coming up to use the shared bathroom across our landing at 3 AM must have been their obvious payback. They didn't wake my gf, but after recording them for a few minutes, I decided to wake her up for some fun anyway.