The leader of the fathers' rights organisation Fathers4Justice tried to make a joke in protest over the way he had been treated on the show.
Matt O'Connor, the founder of the group, was appearing on the ITV morning show to debate whether Father's Day should be banned on the basis that parents shouldn't be celebrated on just one particular day.
During the discussion, O'Connor opted to bring up how he had been treated like an "outcast" in the backstage area of the show.
I’m just going to say one important thing here, I’ve been made to feel like an outcast today in this studio.
I was put, not in the green room, but I was dumped outside.
He then concludes his point by stating:
I'm going to say one thing, I'm going to show you my balls.
O'Connor then stands up and starts to unbutton his trousers and for a moment it looks like he might actually expose himself.
Eventually, it all turns out to be a very bad joke as he instead pulls out a pair of joke testicles and throws them on the desk, much to the relief of presenters Kate Garraway and Ranvir Singh.
Fathers4Justice have shared a video of the incident on their Twitter page.
In protest at being treated like an outcast by Good Morning Britain @GMB Fathers4Justice founder Matt O’Connor gets… https://t.co/ZQ6sPlr75a