Note: we are republishing this story, which originally made the news in March 2016.

A waitress in Colorado used social media to teach a lesson about working in America.

When Taylar Cordova received a tip for $0 on a bill of $187.43, she took a picture of the receipt and posted it to Facebook, reports Mic. Her post was accompanied by a passionate and articulate commentary about working as a server.

“You are the lowest of the low,” she wrote, speaking not just to the customer who stiffed her, but also to anyone who does not tip. Then she continued with an explanation of the consequences of diners not adding proper gratuity to their bill:

Her facts are backed up by the U.S. Department of Labor, which explains that “An employer of a tipped employee is only required to pay $2.13 per hour in direct wages if that amount combined with the tips received at least equals the federal minimum wage

.”

Cordova’s post concludes with a piece of advice. “Don’t even bother walking into a restaurant if you can’t afford to tip,” she wrote. “There’s a McDonald’s down the street if you’re that cheap.”

Her message clearly resonated with the public, having been shared more than 15,000 times on social media.