I recently left a job and from what I saw, I endorse your #3. #1 is a nice thing to do, but in these times, employees should not expect that to go well. I politely gave notice when I left my last job. I intended to stay the full 2 weeks and help with the transition but it immediately became clear that the employer saw the notice period as an opportunity to attempt to humiliate me in front of co-workers, so I didn’t show up the next day or ever again. No one deserves to be the object of petty retaliation. Upon giving notice at a prior job, the employer begged me to stay for one extra month. I stayed and worked as hard or harder than ever to help co-worker cope with the transition. Then, to thank me for my efforts, the employer falsified my termination date to take away a month of health insurance. I reported them to the Dept. of Labor, but that went no where. I guess large employers can lie and it’s okay. As for #2, I’ve never met the employer interested in what an employee has to say. All you can do is wait for the company to implode from its own nonsense and watch the circus from a distance.