"I am giving notice. I will be leaving to take other employment.Resignation letter effective immediately due to toxic environment. Briefly describe your experience. You can describe any negative experiences you've had that you feel are necessary to include. You can write a short and simple letter saying what you just said in your post. Don't cite chapter and verse, but don't sugarcoat your reason for leaving. Regardless of whether you've had a good or bad employee experience, writing a resignation letter can be difficult as it is a sensitive topic. Retaliation are fill-in-the-blank examples of resignation letters to your employer. Do I have a case to sue my employer or work towards a settlement due to FMLA abuses and a Hostile Work Environment?