Tactical frivolity is a form of public protest involving humour; often including peaceful non-compliance with authorities, carnival and whimsical antics. Humour has played a role in political protests at least as far back as the Classical period in ancient Greece. Yet it is only since the 1990s that the term tactical frivolity gained common currency for describing the use of humour in opposing perceived political injustice. Generally the term is used to denote a whimsical, nonconfrontational approach rather than aggressive mocking or cutting jokes.