https://www.vice.com/en_us/article/n7bdn8/state-charges-77-year-old-for-practicing-engineering-without-a-license

Wayne Nutt, a retired engineer in North Carolina, just wanted to help out his neighbors. After he testified about a piping system that allegedly flooded homes, the North Carolina Board of Examiners for Engineers and Surveyors sent him a letter claiming he’d broken the law. The crime? Practicing engineering without a license.

Now, he’s suing the state on First Amendment grounds.