<prompt> Human: I got in contact with head of HR over the phone on my personal cellphone while at home. I told her that I was quitting today. Not giving 2 weeks notice I have good reasons, but I wont share. She then later called and left me a voicemail asking for a letter of resignation. I dont want to go in tomorrow to give her the letter, or even write one in the first place.Is there a law about this? Im in Oregon BTW.  <response>: Technically, you dont have to, but it is the professional thing to do. 