waitress at Zombie Burger in Des Moines​, Iowa, had a less than stellar shift when a customer not only stiffed her on a $17.82 receipt, but also left a scathing and judgmental note, according to NY Daily News. "Tips are only for normal looking people," was the unhelpful message waitress Taelor Beeck received from her customer. 

Beeck—who looks like a human being—told WHO, "At first I felt really upset. I felt attacked. I almost felt like I was back in middle school all over again."