Walmart is completely at fault here: 1. They hired this negress and put her in charge of cash. 2. They allowed $15K to accumulate in a single register. So, HR and the floor manager can both take a bite of the shit sandwich they made.
I've been thinking, why don't I call big companies that like to put people on hold, then when a real human answers I say "YOU'RE ON HOLD" and play a Johnny Reb or Mr. Bond song that is appropriately offensive for the apparent ethnicity of the corporate drone answering the phone?
Imagine a nigger answering the phone and hearing: "YOU'RE ON HOLD ... We ought to send them all back to Africa..."