I listened to MIL boasting about her brother for years, how he screwed the system, took backhanders and generally abused his position. This guy was rude and horrible, especially to women, but I couldn’t do anything as I couldn’t prove it, MIL could have been making it up for all I knew...
Until the guy made a mistake. He posted about an illegal activity on Facebook! The post wasn’t up for long but long enough for me (and as I found out later, several other) to screengrab. I sent my copy to the local paper. So did others. They duly printed it. It started an avalanche of complaints and the guy lost his job.
MIL doesn’t boast about him any more and he doesn’t turn up to family events.
Tell me your stories of revenge!