To what social rules do you refer? The manners, etiquette or conventions Judith Martin, Miss Manners talks about: http://www.neh.gov/news/humanities/2.../civility.html

Or, perhaps the everyday manners of Emily Post: http://www.emilypost.com/everyday-manners

How about social conventions:

In sociology a social rule refers to any social convention commonly adhered to in a society. These rules are not written in law or otherwise formalized. In social constructionism there is a great focus on social rules. It is argued that these rules are socially constructed, that these rules act upon every member of a society, but at the same time, are re-produced by the individuals.
Sociologists representing symbolic interactionism argue that social rules are created through the interaction between the members of a society. The focus on active interaction highlights the fluid, shifting character of social rules. These are specific to the social context, a context that varies through time and place. That means a social rule changes over time within the same society. What was acceptable in the past may no longer be the case. Similarly, rules differ across space: what is acceptable in one society may not be so in another.
Social rules reflect what is acceptable or normal behaviour in any situation. Michel Foucault's concept of discourse is closely related to social rules as it offers a possible explanation how these rules are shaped and change. It is the social rules that tell people what is normal behaviour for any specific category. Thus, social rules tell a woman how to behave in a womanly manner, and a man, how to be manly. Other such rules are as follows:

• strangers being introduced shake hands, as in Western societies, but
  • bow toward each other, in Korea, Japan and China
  • do not bow at each other, in the Jewish tradition
  • in the US, eye contact, a nod of the head toward each other, and a smile, with no bowing; the palm of the hand faces sideways, neither upward nor downward, in a business handshake.
  • present business cards to each other, in business meetings
• click heels together, in past eras of Western history
• a woman's curtsey, in some societies
• in the Mideast, never displaying the sole of the foot toward another, as this would be seen as a grave insult.
• In many schools, though seats for students are not assigned they are still "claimed" by certain students, and sitting in someone else's seat is considered an insult

http://en.wikipedia.org/wiki/Convention_%28norm%29

ScienceDaily (July 19, 2005) — Some of us can hold our tongues better than others but even the best of us will blurt out the truth when we're tired, stressed or distracted, according to a new research report.

"The dinner party guest who puts his foot in his mouth could lack a crucial mental ability that stops the rest of us from blurting out our true feelings," according to a report in the July issue of Psychological Science, a journal of the American Psychological Society.

But while most people can usually avoid telling painful truths by inhibiting themselves, the results of experiments conducted by University of New South Wales psychological researcher Bill von Hippel suggest that we should be extra wary of making social blunders when we are under strain or fatigued. http://www.sciencedaily.com/releases...0719002131.htm

Social blunders do not seem to be limited to those with an illness. I generally do not have trouble following the social conventions I am aware of.