The tranquility of the night was suddenly torn by a burst of laughter, followed by the music, loud talk, and cheerful acclamation from the neighboring apartment… God, party again!

Quiet amplified every otherwise muffled sound. No way to fall asleep, so the earplugs served their purpose.

Next morning, when I opened my eyes, I caught the unusual light cast from outside, I knew something bad happened: It should be dark; it should be 6:30 had I been woken up by the alarm-clock which now read 8:15, I should be sitting in the classroom at this time.

That was the earplugs: when they were inflating in my ear canal, the outside world disappeared, including my alarm-clock. I laughed a mute laughter: Oh, man, you earplugs, so effective, so high-quality that I even dare not to use you whenever there is first period class next morning.