Polite society

Sarah told me she didn't like the new plastic bowls I bought because they have a lip around the edge, which makes it hard for her to get her mouth around it to drink from it.  I told her it's considered rude to drink from bowls anyway.  I told her that I believe in being comfortable in your own home among your own people, as long as you know how to behave properly in other places with other people. I said, "I don't mind if you do it here, as long as you realize that it's not acceptable among polite society."  She said, "Good thing we're not among polite society."