An employee was attempting to drain a 4-foot wide and 4-foot tall tank that had an open lid that was missing a counterweight. The tank was being moved into place by a forklift. When the employee instructed the forklift operator to lift the tank, the lift caused the lid to close. The employee's left hand was positioned near the opening, and the closing lid smashed the third and fourth fingertips of the employee's left hand. The fingertips had to be surgically amputated.