The Beep test

NO, NO, PLEASE GOD, NO!
You're lucky if you haven't done this, and I'm assuming you haven't considering you've looked it up on here. It's a test in which people (usually students doing this for P.E.) running back and forth between two points 20m apart. Each run must be synchronized with a pre-recorded audio track which plays beeps (hence the name 'beep test') at regular intervals.

PEteach: "Okay guys, time for The Beep test!"
Everyone: "oh no."