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.
One common scenario is an object dropped on the tip of the toe or finger. Sometimes blunt-force trauma to a nail causes excessive bleeding beneath the nail that causes enough pressure to loosen the nail -- in some cases causing complete loss of the nail shortly after.