The fingers have to press the string right in front of the fret with the middle of the finger tip and with a minimum of pressure.

Many servicemen were brutally treated by the Japanese during the war. And American policymakers sometimes fret that Japan's insensitivity makes engaging with a rising China harder.

Don't fret though, with hard work, discipline, and the help from Lifehack, we can beat this addiction, and use these tools the way they were intended.