I have had enough. 4 years.
Imaginative Conversation:
Me: "Boss, got something to tell..."
Boss and me then walk to the conference room, door closed
Me: "You know what, i fucking hate you. You're now on your own, I Quit!"
Boss: "O......Kay, Great!"
As spoken, it's just an imagination.
In fact, it took me half an hour to research on "how to write a decent resignation letter".
With the right format, font, color, hierarchy, naming and spell-check. I never do writing so seriously.
Today, i tell him, i feel so relief.