With a glenohumeral dislocation, a dimple in the skin occurs below the shoulder joint and the head of the humerus that can be felt with the hands (palpated). This dimple can be accentuated by pulling down on the affected arm (sulcus sign).
A pastry chef is also known as a patissier or patissiere (female version of the term.) These individuals are considered professionals in a restaurant kitchen and are part of a business hierarchy, which can change between establishments.
Experience is key. Most pastry chefs start in other positions in the kitchen, from dishwasher, cook, etc., and learn the skills they need on the job to move up. Some might learn from bakers or other dessert makers and move into fine dining.