Calkins returned the sandwich to the McDonald's where she purchased it, and a refund was provided. Calkins told WXYZ that employees were "horrified" by her claim.
She said she'll never eat at a McDonald's again.
The Oakland County Health Department is looking into Calkins' complaint.
In a statement to WXYZ, McDonald's said food safety is a top priority and that they are investigating Calkins' claim.
About the Author