Final answer:
Servers and lab personnel should keep their hair controlled, tied back, and covered with hair nets or clips to prevent contamination and adhere to proper hygiene and safety standards.
Step-by-step explanation:
When working in environments such as a restaurant or laboratory, it is essential for servers or personnel to maintain proper hygiene and safety standards relating to hair. Hair should always be kept in a manner that prevents contamination and ensures safety. Tie back long hair and use measures like hair nets, hair clips, or pins to ensure hair is controlled and does not come into contact with food, bacterial cultures, or open flames. It is also crucial to have clean and fresh-smelling hair, as personal hygiene reflects on the establishment's overall cleanliness.
Specific answers to the question provided may vary depending on context, but for both servers in restaurants and personnel in laboratories, maintaining controlled hair that is pulled back or covered is typically required to meet health and safety regulations.