Moore (right) receives his ELRA certificate
Some might say he spent his playing career doing it, but now it's official: Brian Moore is a referee.
The former England hooker was never shy of offering of the odd piece of advice to the officials during his playing days, and he has not kept his opinions to himself in his new career as a BBC commentator and newspaper columnist.
But the 48-year-old could find himself on the other side of the debate from now on after passing the Rugby Football Union's Entry Level Referee Award (ELRA).
Strangely enough, it all came about after the famously pugnacious Moore - a former lawyer - got into a heated online debate on a referees' forum.
Moore made his name as a no-nonsense hooker with England
"I'd got into an argument over the refereeing of the front row," said Moore, who won 64 caps for England between 1987 and 1995 and played in three World Cups and five British and Irish Lions Tests.
"I reckoned I'd been a hooker in over 75,000 scrums during my career so I knew what I was talking about.
"Then the questioner asked how many front rows I'd ever refereed, and he suggested I take the ELRA course to find out what it was like. So I thought 'yes, I'll do it'."
"I think the course is good. They don't expect you to learn the whole law book in one go; they encourage you to focus on how the laws are applied.
"I enjoyed it, I intend to carry on refereeing now that I've qualified and I'd recommend it to any ex-player who is a good communicator."