It’s a pretty simple rule. Most of us learn it at a young age. Even dogs know it. Now, the High Court has given it legal substance in the recent Banerji decision (Comcare v Banerji [2019] HCA 23). In this case, the High Court found that the dismissal of a government employee for airing negative views about her employer on Twitter was lawful. The Court made this finding even though the tweets were posted anonymously, using an alias. Even though the Banerji decision ultimately