One man had an unpleasant surprise when he found human teeth in a burger he bought in a McDonald's from Japan.
The subject acquired the controversy McMuffin in a japanese city of Kanazawa, Ishikawa.
He was about to take the hamburger work when he realized that it contained teeth inside, so the man continued to deliver the food to the authorities.
The Institute of Health performed the necessary research on the product and the site.
The spokesman for McDonalds reported that it could not be clarified how the teeth would have reached the hamburgers, but the necessary steps will be taken to prevent it from happening again.