"When was the last time you did something for the first time? When was the first time you did something for the last time? Let's find a million things that we could do for the first time. it could be the last time.
Never confuse etiquette and manners. Bad etiquette is using your dinner fork on your salad. Bad manners is pointing out that someone used their dinner fork on their salad. Manners will always trump etiquette.