It's got off to a well, err, um, flying start.

When Senator Macdonald sought to question Mr Martin and Ms Kearney on matters of union corruption, Senator Lazarus questioned the relevance of that line of inquiry.

Senator Macdonald said he had 10 minutes to question the witnesses, but Senator Lazarus stated: "I am the chair and I'll decide how long you'll have - do you have a question or do we move on?"

Senator Macdonald then replied: "You are friendly referred to as the brick with eyes; can I say you are now showing you are a one-eyed brick."