[Dylan16807]

If you spent many hours, days, months with them it would be. Come on.

[akerl_]

Why? Why does doing something in public for a long time create an obligation to people who see me do it.

[Dylan16807]

They're doing it with you, so you should at least say goodbye.

I don't know what I can say for "why" other than go find a manners book and a philosophy book.