If the governor neglected, as a courtesy, to call the mayor, he is sorry.

We don't want them to become the tobacco Nazis, chasing people down, ... But we can see some common courtesy being used. And the issue can be revisited later if needed.

Courtesy is the grease that lubricates society.

This is certainly not traditional British courtesy.

Of course, it's a matter of courtesy,

I am the very pink of courtesy.