Back when I was a waiter at Pargos in Nashville I did not notice this but...my wife’s waitress work at TGI Fridays in Columbus, Georgia is different. She gets stiffed or undertipped by Blacks constantly.
Many go in with an attitude and don’t accept the first table offered as if they are a Rosa Parks wannabee. Then they send food back because the decided they didn’t like it (after eating 90 percent of it) and are always cruising for complimentary dessert or appetizers. Even the Black wait staff don’t like Black customers.
A friend of mine just started waitressing at TGI Fridays. The new waitresses always get the tables with black customers because they just don’t tip.
She did an entire shift for $12 in tips.