Snake Head in Meal at TGI Friday's

It seems that we're not the only one finding unnatural items in foods at restaurants (Nasties at McDonalds)...

A diner at a TGI Friday's in New York found a snake head in his meal! At least the object in my daughter's cheeseburger had never been alive before.

Investigation into this shows that the snake head had not been cooked so it was added to the meal after the fact. So, did somebody put a snake head in this diner's meal or did the diner set it up himself?