very good advice

An excerpt from Patrice Hannon's "Dear Jane Austen" states:

There is a certain kind of self-absorption---we are all absorbed in ourselves to some degree, of course; I mean a measure beyond the ordinary---that threatens to destroy the foundations of common civility. I am afraid the romantic elevation of individual desire over the general welfare has fostered this unfortunate development. Thus, the gentleman stops in the most inconvenient places to dial his cell phone, putting his own ease over the common good without so much as a second thought....You are quite right to deplore his behaviour but do not let it affect you so strongly. Such sensitivity will ruin your happiness---heroines should be made of sterner stuff, or if not, then they must choose to behave as though they were.

I therefore find it helpful to frequently carry an armor of "nonchalance." If people don't follow rules, let us not be over-acting in showing our disagreement. There are many ways to correct our fellow men...ways that are within the bounds of politeness and proper decorum.