I worked in a hospital where the Blood Bank was actually part of the entire clinical lab so we got to intereact with Hematology. They would always come in and give us a heads up if there was a very low Hgb in a patient. On this day one of the techs came in holding a sample in her hand explaining the CBC results on this patient isn't accurate. She then went on to explain that she stuck a stick in his pee hole. I asked "What? You stuck a stick in his pee hole???" She says yes! We went back and forth a couple more times as my eyes continued to widen more and more. Finally it became clear when she said "Yes, I stuck a stick in the sample for patient Espijo and there's a clot in it!".