Elaine Loughlin: How do we navigate farcical Covid guidelines?

Our ministers, senior civil servants, and politicians have turned up at all sorts of apparently permitted soirées.
What's the difference between exercise and training and when does enjoying a spot of outdoor hospitality with friends turn into an organised event?
This is not some sort of cryptic brain-tease with a clever answer, it's the type of information you now need to know to navigate the almost farcical Covid guidelines on social and sporting events.