On our last vacation, my wife and I saved some money by staying in
a cheap hotel. Just as we were falling asleep, we heard the sounds
of mattress springs and a banging headboard from the next room.

At first we were amused by the amorous couple.
After five minutes it had lost its charm.
After ten minutes we were getting pretty annoyed, in that it was
keeping us awake.
After fifteen minutes, we were just plain ticked off.

After half an hour we were pretty damned impressed.