Here's my boring local scandal.
In my teens we had a really charismatic elder in our hall. He was friendly, could give an A1 talk at short notice, etc. He had a wife and 2 lovely boys. But even as a teen I felt like something was "off" with him. I would notice him leering at me during the song and prayer. While going over my baptismal questions, he remarked on how pretty I was and how many guys are going to ask me out when I go to college. He even gave a comment about me during the Watchtower study that really had nothing to do with the question. I honestly never felt comfortable around him, and I was relieved when he brought another brother with him to go over my baptismal questions.
Fast forward a couple years later, his wife suddenly gets DFd, and they get divorced with him getting the kids. We were all shocked and immediately felt pity for the "poor single father" having to raise his kids alone.
Not too long after that, I see this brother talking to a mysterious woman. At the time I was thinking, "Man these sisters are desperate. This man only just got divorced." Two weeks later, this man is married to yet another sister that went to our hall. We were shocked!
Several weeks after that, my stepdad calls me and tells me that this brother was DFd. He claimed that it was because his divorce from his other wife wasn't finalized.
It wasn't until later that I found out the real story of this man. It turns out that he had been married before, and left his first wife for his second one. He then started cheating on his second wife. He was also physically abusive to both her and their children. (I had once seen the youngest son come to a meeting with a black eye, and now I knew why.) There were domestic violence complaints against this man, yet he was still somehow allowed to remain an elder.
Finally, the wife had met someone at her job and got involved with him. The elder found out, ran to the elders, and she was DFd. In the meantime, this elder's mistress thought she was going to be the next wife. It turns out that the mistress was the mysterious woman I saw him talking to one meeting. When he up and married another sister, she ran to the elders and spilled the beans. They were both promptly DFd. (He's since been reinstated and lives with his new wife and kids.)