This happened to a driver I know . Never stand in the cargo area of your p57 and reach with your right hand and slam the bulkhead door shut. The cord got wedged between itself and that ridge that runs down the door,and broke the middle finger. The fingertip was on a 45 degree angle with a bone popping out just past the fingernail. The doctor had to use a scalpel to remove to top of the nail in order to snap the bone bsck to its relative position . Sleep was next to impossible after the hospital visit. He wont be playing stairway to heaven for 6 weeks.