Opened new box of Post Select Great Grains, raisins, dates and pecans. Added milk, looked down and found what looked like a stick at first glance. I picked it out and found it hard. It's about one and perhaps 1/4 inches long and looks like it could be a bone. One end looks like it could be a joint. Of course I guess it could feasibly be a stick but the doubt is there and and it definitely does not belong in this mix. What should be my first step here? This cereal is expensive but I also bought a box of blueberry Post Select and ate that yesterday with no foreign object observed but I'm sure it was made in the same place.