The injured employee was loading books into a gondola from a protected hydraulic tipper and transporting the gondola to a staging area with the assistance of another employee. While putting the gondola bin in the staging area, the injured employee removed his hand from the handles and placed them on the top rail. His right pinky finger was then caught and pinched between the bin on his gondola and a second gondola's bin. As a result, the employee's right pinky finger was amputated at the top joint.