"At first, I felt really upset," Beeck told the TV station. "I felt attacked, I almost felt like I was back in middle school."

Beeck posted the receipt to Facebook but it has since been deleted. Her employer said Beeck has worked at Zombie Burger for 5 years and is a great employee.

Beeck says this is a lesson for people to not judge a book by its cover.

"I mean, I may look like a weirdo but I'm actually a very nice, decent person," she told KWWL. "It's the way that I can express myself artistically and it's really important for me that I'm allowed to do that, and it's OK if people don't understand it because it's just who I am."