USING A JACK AND BLOCKS TO RAISE A SAND STACKER, EE'S SHOULDER BECAME SORE. HE THOUGHT IT MIGHT GET BETTER AFTER USING IT, BUT IT KEPT HURTING SO HE WENT TO THE DOCTOR TO HAVE IT CHECKED. EE WAS OFF 1 DAY AND RETURNED WITH RESTRICTIONS OF LEFT-HANDED-WORK-ONLY UNTIL HE HAS AN MRI.