This may not be appropriate (rather hard to tell) so sorry if it is not OP.
About 2 months ago I flounced out of my job. Sent the boss an email telling him exactly (over 13 pages) what was wrong with him and his unpleasant arrogant attitude. It made me VERY VERY happy. I did however, have something else in the pipeline.
So, in that instance, flouncing was fabulous and fantastic.