The Project star left shocked by Natalie Barr’s wild comment about Sunrise co-star Sam Mac

Project guest star Dave Thornton was unimpressed by a casual joke Sunrise host Natalie Barr made about her co-host Sam Mac earlier this week.

Sam Mac, 42, held a live chat with a knife thrower on the breakfast show as he crossed over to Nat, 55, who joked that the artist should 'stab' Sam.

However, 44-year-old Thornton did not see the humor in Nat's joke and launched a scathing tirade against the presenter on Wednesday evening's episode of The Project.

“Guys, I understand. It's early, it's live TV and sometimes you just say what comes to mind,” the comedian began.

“However, this Sam Mac interview with a knife thrower has made one thing clear. He may need a restraining order against Nat Barr.”

The Project guest star Dave Thornton (pictured) has made it clear he was unimpressed by a casual joke Sunrise host Natalie Barr made about her co-host Sam Mac

After playing footage of the moment, Thornton joked that he had no idea weather reporting was such a dangerous job.

'He's a weatherman. Whether he survives or not, who knows how this will turn out?' he joked.

Sam Mac shared his 'near-death experience' during the breakfast show on Tuesday.

Earlier this week, weatherman Sam Mac (pictured), 42, chatted live with a knife thrower in the air as he cut to Nat, 55, who joked that the artist should 'stab' Sam.

Earlier this week, weatherman Sam Mac (pictured), 42, chatted live with a knife thrower in the air as he cut to Nat, 55, who joked that the artist should 'stab' Sam.

On his Instagram stories, Mac showed a video of himself getting involved in a knife-throwing act at Brisbane burlesque club Pink Flamingo during a Sunrise segment.

He stood against an upright wooden board as a man hurled an array of knives at the board around him, captioning the video “become a TV weatherman, they said.”

“Normally in television the knives go into your back, so this is a bit unorthodox,” the presenter joked nervously before the weapons fell into the forest around him.

However, Thornton, 44, failed to see the humor in Nat Barr's joke (pictured) and launched a scathing tirade against the presenter on The Project

However, Thornton, 44, failed to see the humor in Nat Barr's joke (pictured) and launched a scathing tirade against the presenter on The Project

“This is not a fun day at work,” he said as the performer continued throwing the knives, before revealing: “I felt the wind from that one go past my eye!”

The breakfast show weatherman led a cheer after the performer finished the stunt.

The humorous presenter recently returned to screens after taking a month's break from his role on the show to focus on full-time fatherhood.

He was in good spirits as he donned a Santa hat while showing off his dance moves during a live segment of a Christmas dance party.

Thornton joked that Mac might

Thornton joked that Mac might “need a restraining order” against Nat Barr after her shocking joke