Robert Irwins Strange Phobia Revealed!

He has built a reputation as a fearless Wildlife Warrior, but has revealed the one thing that makes him tremble.

Robert, 22, appeared on The Tonight Show with this week, and took part in its popular Three Scoops social media segment.

Jimmy asked Robert three probing questions about his life, including a request to reveal his biggest phobia.

'A lot of people are afraid of animals – everyone has an animal they're afraid of. What animal are you afraid of?' Jimmy asked.

Robert admitted that he was comfortable with the entire animal kingdom, but certain inanimate objects were another matter.   

'There's literally not a single animal I'm afraid of. Like, not a single... because I've grown up with it, right?' Robert explained.

'But I actually do have a phobia – broken glass.'

Clearly uncomfortable talking about the sensitive topic, Robert added that the sound of broken glass was an absolute dealbreaker.  

'If I hear... I can't even think about it,' he said, giving himself the 'ick'.

'If I hear a glass break I'll leave the venue. Like, I'm out.'

When Jimmy asked the Aussie star to explain his phobia, Robert said it was partly a safety issue.

'When someone drops a glass and they just go and start picking it up, I'm like, "How do you do that?"' he said.

'I'll jump on a crocodile, mate, but I won't pick up broken glass.'

Jimmy then declared Robert's phobia 'bizarre' before he was asked by Robert to divulge his own worst fear.

When Jimmy asked the Aussie star to explain his phobia, Robert said it was partly a safety issue. 'When someone drops a glass and they just go and start picking it up, I'm like, "How do you do that?"' he said.