In our first apartment hubby and I lived under an unmarried couple that would have sex at all hours. Morning, noon, night, 4 am. It was so loud as if their bed was coming off the ground! One night, it was 3 am and we'd had enough of it so hubby went up and said I don't care what your doing, but we have to get up at 7 and if you don't stop we're going to report you to the landlord. They were half naked and very apologetic. If we hadn't been so tired I'm sure we would have gotten a giggle over it. They apologized every time they saw us for over a week.