When it is raining, those carrying umbrellas and walking underneath a sidewalk awning that is much wider than the sidewalk should yield right-of-way to those without umbrellas.
Although it is beneficial for young persons to develop a familiarity with modern commerce, those with toddlers should refrain from encouraging their youngsters to operate the sole ATM in a crowded mall food court until the lunch rush has subsided.
Although involving the community in raising children undoubtedly has many benefits, those whose small children inadvertently commit a breach of etiquette in front of a stranger should not retain said stranger at the scene of the incident as a "social hostage" until the child is made to apologize.