A restaurant owner fired his son for the note he left of a customer's receipt.

A Rhode Island restaurant owner has fired his son for writing the word ‘fatty’ on a customer’s receipt.

When Dillon Arnold went to pay his bill at All Stars Bar and Grill, he was given a credit card slip to sign. But in the location on the receipt where the table number would usually appear, the bartender had manually entered ‘Fatty.’

Hear from a victim of body shaming on a receipt at a local restaurant. @NBC10 news at 11. pic.twitter.com/1z2jJbom7U

— Tony Gugliotta (@NBC10_Tony) June 23, 2016

Speaking to WJAR-TV, Arnold recalled, “I was signing my slip.”

“I didn’t really pay attention to it yet, and then I just happened to read it and I saw it in the corner and I was like, ‘Wow,’ and my heart just dropped.”

Arnold posted a photo of the bill to Facebook, where it has since gone viral. The story has been picked up by international news sites – encouraging the owner of the restaurant to act.

Tony Amrosio, who owns All Stars, offered Arnold a $50 gift card, which Arnold ‘wasn’t ready to accept’. In an interview with WJAR-TV, Ambrosio said, “I want to apologise to you, Dillon, from the bottom of my heart.”

“That’s not the type of person that I am, my employees are, or my child.”

Tony Ambrosio’s son, T.J., has also apologised for his actions. The 18-year-old wrote on social media, “What I did was immature and I acted without thinking about the consequences.”

“I acted in a way that was rude, childish, and totally inappropriate. Due to my actions, I was terminated, rightly so.”

Arnold says he doesn’t blame Tony for what happened in his restaurant.