When you give your notice to your employer, keep in mind that stress levels may be high. When you are a key employee performing a crucial role and leaving the company to join a competitor, it can trigger a bad reaction. Keep your resignation conversation as succinct and professional as possible. It is important to get the balance right, protect your best interests and at the same time, leave a great impression.
https://www.youtube.com/watch?v=_Z8GDKWW3rk