The production manager might perform personal inspections or oversee a group of quality-control workers. Routine preventive maintenance on manufacturing equipment can be important to avert potential standstills in production.
Toenails typically fall off due to either fungal infection or injury that results in a separation of the nail from the area of the toe called the nail bed, according to Foot Vitals. While pain is common with this type of injury, it is not guaranteed.
Often a black toenail will eventually fall off and regenerate on its own. If pain or signs of infection (e.g., pus, discharge, foul odor, fevers, chills) are not present, you may not need to seek medical treatment right away. Even so, keep in mind that when the nail returns it may be abnormal as a result of the trauma.