Al Roker's Law Breaking Tweets
When Al Roker went in for jury duty, he attempted to share the experience by snapping pictures of the other potential jurors for the case. Though the pictures weren't taken in the courtroom, they did fly in the face of a posted rule against taking photos in the building and the court asked Roker to stop.
Always consider the legality and appropriateness of what you're tweeting, especially when you're in a public setting. There are many places from courtrooms to concerts where photos aren't allowed.