"As a wise old lady I used to work for once told me, “the best revenge is no revenge.” Make them think you’re going to utterly embarrass them, and do nothing. One of two things will happen, nothing or they will have a full-blown panic attack.
I used this once on a former friend who tried to coerce my wife into sleeping with him. Btw my wife wouldn’t give this fool the time of day. I let him know I knew and told him I was coming for him. He literally and legitimately had a full-blown mental breakdown. I sat back and did nothing. Part of me feels bad for damaging him psychologically part of me doesn’t, so idk how to feel anymore other than relief he is outta my life."