BILLIE FAIER has described her rage after a lady hit her three-year-old son Arthur on a flight home from Dubai.

When the German passenger lashed out at Arthur after he kicked the back of her chair while throwing a tantrum, the crimson mist fell in full force.

On The Sam&Billie Show podcast, the mother-of-two described the event, saying, “Don’t get me wrong, this is extremely upsetting.” There was an older woman in front of me, and when he kicked the back of her seat, I was like, ‘oh god, so sorry.’ Then, when he was weeping and having a tantrum, she turned around and slapped him.

“Excuse me! I went!” I stood up… you know, when you’re covered in crimson mist and shaking. She whacked him across the arm. I guess she was German or something, because when I kicked off, I went insane.”

The event drew everyone’s attention on the plane, and the repercussions woke up Billie’s husband Greg, who was asleep a few rows back.

Billie and Greg recently celebrated the fifth birthday of their second kid, Arthur, with a superhero-themed party.

A three-tiered cake was supported up by the Hulk’s massive fist in front of a backdrop of colourful balloons, Captain America’s shield, and comic book artwork.

Nelly, Arthur’s older sister, appeared overjoyed for him as she grinned in a family photo.

“The most FUN day celebrating Arthur’s 5th birthday,” Billie said on Instagram.

“Many thanks to the incredible team of vendors and entertainment for making it so unique.”

“Arthur said it was the finest birthday everrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

“Such a great afternoon luv u all xx,” Billie’s sister Sam said. In the morning, it’ll be your birthday boy xxx.”

A life-size Hulk did a dance routine accompanied by Thor and Captain America, while Spider-Man performed trampoline flips.

Each of Arthur’s friends left with a nicely wrapped party package, capping off the great day.