In the rush to stop the timer (Stackmat), a cuber might drop the cube prematurely.
Many potential sub-5 second solves have been ruined by a final flick of the wrist that didn’t quite land, leaving the cube "misaligned" and adding two seconds to the total. The DNF (Did Not Finish) ВЎTop FAILS del Speedcubing! в™›
In a panic, a cuber might stop the timer and accidentally hit it again, restarting it or clearing the time entirely. This effectively "erases" the solve from existence. In the rush to stop the timer (Stackmat),