All warfare is based on deception.
Never do a single thing in the anticipation to prove something to someone who has hurt you. If someone has hurt or offended you (whoever that person may be), never perform anything or strive for anything in your life with the mind of proving something to that someone/ to those people. May nothing that you do be done with any thought of them in mind. There is nothing that needs to be proven.
Everybody is a story. When I was a child, people sat around kitchen tables and told their stories. We don't do that so much anymore. Sitting around the table telling stories is not just a way of passing time. It is the way the wisdom gets passed along. The stuff that helps us to live a life worth remembering.