text: A disgruntled McDonald's customer has revealed why she allegedly assaulted a 16-year-old worker at the fast food chain over her order of fries. Amy Johnson, from Sydney, said outside court on Thursday: 'We checked our food and all the chips were not even in the cups.' The 38-year-old mother saw red and is now facing serious assault charges after she allegedly grabbed the young woman by the neck and scratched her face. Appearing at Newtown court, in Sydney's inner west, on Thursday, she said she became aggressive because the fries had spilled out of their containers and the McDonald's worker used her hands to put them back in the packet. 'We gave the bag back and said, can you please place them in a cup?,' Ms Johnson told Channel Nine News. 'She put her hands in the bag, no gloves or nothing, picked up the chips and shoved them in the boxes and gave back the bag and that's when we got angry and we threw the bag back and said "make us new chips".' Scroll down for video . 38-year-old Amy Johnson faces two assault charges and has faced court today after she grabbed a teenage McDonald's worker around the neck and scratched her face . The Daily Telegraph reported Ms Johnson was a passenger in a BMW when she went through the McDonald's drive-through at Stanmore in Sydney's inner west on March 17 at 6.10pm. The assault allegedly happened after her $60 order went wrong. When she received her food from the 16-year-old girl at the drive-through hatch, the woman allegedly threw it back into the window and demanded a new order. The young female employee asked the driver to pull into the waiting bay while a new order was prepared. But Ms Johnson then allegedly got out of the car and entered the store yelling at the teenager. Police say she grabbed the 16-year-old by the neck and scratched her face before the 21-year-old manager intervened to stop her. When she received her food from the 16-year-old girl at the drive-through hatch, the woman allegedly threw it back into the window and demanded a new order . The 38-year-old woman was a passenger in a BMW when she went through the McDonald's drive-through at Stanmore (pictured) in Sydney's inner west . The manager grabbed the woman's hand and she allegedly scratched his arm before police were called and arrested her at the scene. Ms Johnson claims that the fries had fallen out of their packaging and on request to have them repacked, the teenage attendant did so with her bare hands. The mother asked to have them replaced and entered the shop after becoming impatient and became aggressive with the young worker. 'I said to her, 'what do you think we are?' and she said 'you're an animal, you're a dog,' Johnson said. 'And then I lunged at her.' Ms Johnson has been charged with assault occasioning actual bodily harm and common assault. She stayed silent through Thursday's court proceedings and has not yet entered a plea. Sorry we are not currently accepting comments on this article.
target: Woman charged with assault after attacking 16-year-old McDonald's worker .
  Amy Johnson, 38, said the fries had fallen out of their containers .
  McDonald's worker used her hands to put them back in the packet .
  Johnson ordered new ones and grew angry, going inside the store .
  Police have said Johnson aggressively grabbed the teen around the neck .
  She stayed silent through today's court proceedings and didn't enter a plea .
  She spoke outside court saying the teenager called her a 'dog'