People who work in positions of security guards in San Francisco have more opportunities for work because of the rise in need for safety and protection. Over the last hundred and twenty years, the United States has increased its guard force extremely, with a rise in police force, armed forces, and private security workers, with the change of times toward a more capitalistic direction and wars that have torn nations apart. As more money is generated by the wealthy, they have greater need to protect what they have made, so they can keep making more money. There has come to be great changes in the way human beings live, with less people having productive jobs and more people having jobs where they are simply watching something, with the slight chance of actually having to protect it against intruders and invaders. The United States of America has grown to become a society based not only on the mass production of money, but also the protection of it. Police, military, air force, marines, SWAT, FBI, and other agencies involved in security and protection are provided work and there are more jobs in these fields than there are teachers of all levels in the United States. There is a high demand for security work these days and security guards in San Francisco have too many things to look out for when working, such as the homeless, loiterers, vandals, thieves, trespassers, and skateboarders. Security guards need to be trained in order for them to able to properly deal with problems with non-complying individuals, without getting too physical, or being too weak or vulnerable and becoming overpowered and overcome. Especially nowadays when you hear about stories about how security guards being too rough and aggressive in their actions or being completely overpowered and beaten senseless, it is important for security guards in San Francisco to follow their training procedures and to adhere to those guidelines when the time times and action is needed in order to protect a territory or even your own life. It is important for security guards to follow their training, because it is the ideal way to handle security situations, and it helps to prevent injuries or accidents that can be avoided by practicing safe procedures. It is also important to follow training guidelines so that guards are not overly violent in handling people, that injury or death occur, as both of these things can be terrible for business and are expensive accidents that can lead to lawsuits. In other circumstances, it is also important for security guards to know when it is time to back off and let the police take further action, as there have been incidents in the news of security guards taking their jobs too far and getting run over by cars driven by shoplifters in efforts to escape, as well as other incidents of security guards also taking circumstances too far and shooting people for petty thefts, such as stealing beer and dog food, when police should have been notified to take action.