Worker Films Mouse in Big Mac Buns

A worker in a Philadelphia-area McDonald's filmed a mouse scurrying through a bag of Big Mac buns. The video was then handed over to a local Fox affiliate. 

Former employee Karruim Demaio told The Sun, "I was going back there to get something else and I heard some rustling, so I turned around, and I look, I seen a mouse inside the bread. Not on top of the package, but inside of the package.That wasn't the first time. That was about the sixth or seventh time. That's what made me like, I got to get video of this."

Demaio said employees were told to brush off mouse droppings and serve them to employees. A statement from the store's owner promised a full investigation into the allegations. 

Check out 10 bizarre branding moves from the fast food giant.