A married elder had an affair with a newly baptized sister. Both DFd.
Another elder was having an ongoing affair with a divorced sister in the hall. She was DFd and told to not let her kids come with others who were willing to pick them up. He was DFd but not for long. The last I heard he's an elder in another city.
Another single elder DFd for "unrepentant loose conduct" according to my inside source. But it leaked out from other sources to other people that the elder was homosexual and had attempted to seduce a couple of young brothers(of legal age). He denied it, but the two brothers who didn't like him to begin with testified against him. They had their two witnesses. It has been rumored since that the elder was set up and the two witnesses lied.
I knew of several elders who were shady businessmen. Didn't follow wage laws or file taxes, cheated the friends, used shoddy materials, the list goes on.
One Circuit Overseer who was somewhat a pain in the ass, very hard on the friends, opionated, generally disliked. Apparently he treated his wife much the same way he treated everyone else. She committed suicide.