Like notaries, witnesses aren't generally required in order for a contract to be legally enforceable. However, each state may require special kinds of contracts (e.g., real estate deals, wills, and marriage agreements) to be witnessed by a third party in order to be binding.
McDonald's, apparently, use red and yellow because red=fast and yellow=hunger (hence fast food!). Remember also that meaning is what we create. It does not exist in the color itself and individual meanings may or may not exist in different cultures and individuals.
fast. adj. 1. acting or moving or capable of acting or moving quickly; swift. 2. accomplished in or lasting a short time: fast work; a fast visit. 3. (prenominal) adapted to or facilitating rapid movement: the fast lane of a motorway.4. requiring rapidity of action or movement: a fast sport.hese adjectives refer to something marked by great speed. Fast and rapid are often used interchangeably, though fast is more often applied to the person or thing in motion, and rapid to the activity or movement involved: a fast runner; rapid strides.