If you HAD to respond, what is one positive and potential helpful thing you could say to them?
Now, if you can't or choose not to respond (sometimes that is better) What positive message would you have liked to convey to them? Sometimes writing it down in a journal or as a letter ( that is never sent) can help with the anger and pain we feel after experiencing bullying. I know that has worked for me. Changing a negative experience into a positive, means that we have taken the power back from the person who is trying to bring us down.
It's pretty empowering!
What would you say to them if you could?