() A Jerusalem waiter is out of a job today after he attached the word “retarded” to the receipt of a customer who told him he had a serious nut allergy.

The waiter unintentionally forgot to erase the comment before printing the receipt, which said above the 57 Shekels ($16) total, “The retarded kid is allergic to pine nuts.”

“We had a look at the price, to make sure everything was okay, then I noticed that sentence,” Hadas Bandel tells TheBlaze. “My boyfriend didn’t notice it at first. I started laughing because it was really funny…he didn’t realize he left it on there.”

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In response, Bandel scribbled on the receipt, “The retarded waiter isn’t getting a tip” and topped it off with a smiley face.

Bandel tells TheBlaze that though she and her boyfriend Lior Soltz, both 18, thought the episode was funny, after heading home, the two decided it was important to share their experience in the hopes it would raise awareness about potentially life-threatening food allergies.

She sent the restaurant receipt to the Israeli news site Mako, after which it went viral, with more than 100,000 hits so far.

The day after their dinner, the Israeli couple returned to the restaurant, “Hamakom Shel Itzik” (Itzik’s Place), where they met with the owner who was so upset he fired the waiter on the spot and asked him to write an apology to the customers.

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