Safety is the state of being "safe" (from French sauf), the condition of being protected against physical, social, spiritual, financial, political, emotional, occupational, psychological, educational or other types or consequences of failure, damage, error, accidents, harm or any other event which could be considered non-desirable. Safety can also be defined to be the control of recognized hazards to achieve an acceptable level of risk. This can take the form of being protected from the event or from exposure to something that causes health or economical losses. It can include protection of people or of possessions.

There are two slightly different meanings of safety. For example, home safety may indicate a building's ability to protect against external harm events (such as weather, home invasion, etc.), or may indicate that its internal installations (such as appliances, stairs, etc.) are safe (not dangerous or harmful) for its inhabitants.

Discussions of safety often include mention of related terms. Security is such a term. With time the definitions between these two have often become interchanged, equated, and frequently appear juxtaposed in the same sentence. Readers unfortunately are left to conclude whether they comprise a redundancy. This confuses the uniqueness that should be reserved for each by itself. When seen as unique, as we intend here, each term will assume its rightful place in influencing and being influenced by the other.

Harold Clayton Lloyd, Sr. (April 20, 1893 – March 8, 1971) was an American film actor and producer, most famous for his silent comedies.

Harold Lloyd ranks alongside Charlie Chaplin and Buster Keaton as one of the most popular and influential film comedians of the silent film era. Lloyd made nearly 200 comedy films, both silent and "talkies", between 1914 and 1947. He is best known for his "Glasses Character", a resourceful, success-seeking go-getter who was perfectly in tune with 1920s era America.

His films frequently contained "thrill sequences" of extended chase scenes and daredevil physical feats, for which he is best remembered today. Lloyd hanging from the hands of a clock high above the street in Safety Last! (1923) is one of the most enduring images in all of cinema.^{[citation needed]} Lloyd did many of these dangerous stunts himself, despite having injured himself in August, 1919 while doing publicity pictures for the Roach studio. An accident with a bomb mistaken as a prop resulted in the loss of the thumb and index finger of his right hand (the injury was disguised on future films with the use of a special prosthetic glove, though the glove often did not go by unnoticed).