The attack occurred while the 34-year-old Perth woman was on vacation in Dugong Bay, an isolated spot known for her sharks and water crocodiles salty.
Tawny sharks are normally placid creatures, but they will bite defensively if they feel threatened. In this case, the multiple rows of shark teeth and the powerful jaws of the attacker were strong enough to fracture Brunning's bones.
Although she was quickly brought back aboard by her companions, Brunning first thought that she had lost her finger in the attack.
"I came and I said that I had lost my finger and that I could not even look at my finger because I thought it was gone, and I'm not sure. I thought that if I looked at it, I would probably be in shock. "
His finger survived and Brunning emerged from the incident relatively unscathed.
She said that she was wrong to try to feed the sharks and warned others not to do the same.
"Just be aware of your environment and do not feed sharks."