A university student's Saturday night McDonald's run turned to disgust after she found a disturbing unlisted ingredient in her McMuffin.
The Canberra resident took the first bite of her egg and cheese McMuffin and claimed something wasn't right.
After noticing an odd colour in her meal, she looked closer to find a piece of chewing gum.
"It was cooked into the burger, it was in the cheese", the customer told Yahoo7.
"I feel sick just thinking about it. You trust these people to make your food.