Dang! Too many.
This one newly brother in my hall growing up was a local boxer up until learning the truth. He was almost 40. I was a teen, but he became a mentor. The vicarious "Ain't nuttin in the world but trouble" brother. And he was crazy.
1) A group of us were walking almost a mile to a town pool. He wore speedos the ENTIRE WAY. And nothing but. Through an urbanized area!
2) He was reading WT from stage, and used the 'N' word in one of his comments. Then looked at the conductor and said "That's right!"
3) He got into a few fights at congregation picnics.
4) I had a few other young ones over at a gathering. He stopped by and brought alcohol for everyone. We didn't accept, but it was crazy. He got offended
5) Right before I left the hall, he had gotten married. The sister was a pioneer, but her family wasn't in the truth. She had a nephew who was always in and out of jail. He was another crazy one. Her nephew came into the hall one day and asked to speak to the crazy brother. The crazy brother went to the back. They were talking in the corridor. I was an attendant. They started arguing and shoving. Supposedly, the crazy bro was cheating on his wife, and her nephew arrived to confront him. They started to fight. A boxer and jail bird! We kinda had to get out of the way, but then the crazy brother pulled out a gun. The meeting was still going on. The brothers just tackled them both. Cops then arrived and took them away.
About a year later, he was disfellowshipped.