https://www.techdirt.com/articles/20180726/09450240315/cops-lose-qualified-immunity-after-arresting-man-snarky-facebook-comment.shtml

Three cops have just had their qualified immunity stripped by an appeals court for turning an innocuous, snarky Facebook comment into an arrest. It wasn't all the officers' fault. A "helpful" citizen playing internet telephone forwarded the comment to someone who happened to be married to a police officer and everything went from bad to worse to unconstitutional from there.

Here's how the whole thing started, as related by the Eighth Circuit Court of Appeals decision [PDF]: