If you expect to succeed as a writer, rudeness should be the second-to-least of your concerns. The least of all should be polite society and what it expects. If you intend to write as truthfully as you can, your days as a member of polite society are numbered, anyway.
Stephen KingThe kids accepted my drinking as a part of life. Not a particularly pernicious part. I didn't beat up on them. Basically I don't think I was so different from a lot of dads who have three or four martinis when they get in from work, wine with dinner and so on.
Stephen King