Injuries usually occur when loose clothing or long hair catch on and wrap around rotating shafts. Protruding shaft ends can also become wrap points. Shafts may appear to be smooth, but small nicks, mud, or rust increase wrap potential. It is almost impossible to escape once wrapping of clothing begins, because of the power involved. The more you try to pull away, the tighter the wrap becomes.
Hitches present typical crush points.
Crush points Crush points are created when two objects move toward each other, or when one object moves toward a stationary object. Crushing accidents often victimize a second person, during such operations as hitching. Several crush point injuries and deaths are recorded every year. Avoid getting into a position that could lead to body parts being crushed by objects that are moving toward each other. Constant alertness is vital.