I'm such an infant...
So, I'm grading tests for money (again), and it's all done online. In an effort to make sure that all the scorers are scoring accurately, every, say, 50 papers or so (other companies do it every 10), there is a test paper, which gauges your mad grading skills. On my grading screen, I have a stat for my daily and cumulative grading proficiency. Unfortunately, they chose to abbreviate these to "Dly" and "Cum". Um, yeah. I'm immature enough that it's rather distracting.