Oh my lord, perfect! In the late 90s I had never heard the word cracker. Working Nissan Consumer Affairs, lady on the phone went off, "Well ain't you a smartass little cracker!" Slammed the phone. (And yes, I was being a smartass.)

Pulled my black friend aside, "Hey Darren, just got called a 'cracker'. Sounds like a racial slur, right?"

LOL my god, he took a step back:

"SHALFI you ain't never heard that word?!"

"Um."

"You know, like a slave master? <pantomiming a whip>"

"OH!"