EE ENTERED THE EE LUNCHROOM AT THE END OF SHIFT. EE STEPPED ON ANOTHER EE'S UNTIED SHOELACES. WHEN THE OTHER EE ATTEMPTED TO WALK OUT OF THE LUNCHROOM THE LACES SWEPT INJURED EE'S FEET OUT FRO M BENEATH CAUSING INJURED EE TO FALL ONTO BACK. STRAIN TO UPPER NECK MUSCLES AND STRAIN TO CONNECTIVE TISSUE OF THE CERVICLE JOINTS. EE TREATED BY CHIROPRACTOR.