I am about to hand in my notice after being at my current job for just over 3 years. Through colleagues who have left prior, I am told that all levels of upper management, when discussing your decision, try their hardest to guilt trip you into staying. If you go through with it, they can take it very personally and degrees of petiness ensue.
I feel like I am very impressionable, and could be convinced to stay, even when my new offer is leagues better. How can I handle these talks in a professional manner?