EE knelt down by the pressure pump to fill out a report. He removed his gloves and laid his left hand on the pressure pump cage as he knelt. His head bumped a pizza pan and dislodged a rock measuring 14""X12""X1. It fell and cut three outside fingers. He finished the shift. Clinic did not treat the cut except for antiseptic until an orthopedic could on 9/16/10. Found small fracture.