I am a security guard with time on my hands for a sidereal project such as this. To be licensed, the security guard studied CPR, First Aid and Nutrition; making them available for work in construction, condominium, office and event sectors. Every building needs some type of security; physical. K-9 or electronic to protect living beings, information and property. Most people don't realize the security guard on patrol is not a police officer, fireman, paramedic or janitor. The guard is more a witness and a good samaritan in case of trouble because they know about health and safety. Safe at work - Safe at home.