I'd heard my neighbors going at it a couple times, and after a while I let them know how audible they'd been to everyone on our floor. They laughed and told me they kind of figured as much. I asked how they'd feel about being recorded sometime, and they agreed, as long as they got a copy. They liked this one a lot. They've since moved away, but to this day, listening to her shout "I want it back, put it back in" gets me off every time.