A BRISBANE man who threatened to break a seven-year-old’s legs after the child kicked his plane seat has been fined $750.

Brett Walter John Gale, 32, from Sunnybank Hills, appeared in Brisbane Magistrates Court on Thursday and pleaded guilty to offensive and disorderly conduct on a Virgin Australia flight on August 30.

Prosecutor Rebecca Blaszczyk told the court that Gale threatened the child and challenged a male passenger to a fist fight “out on the tarmac” after the plane landed in Brisbane.

Ms Blaszczyk said the spat began shortly after the plane took off from Adelaide, when Mr Gale turned around in his third-row seat and told the seven-year-old to “stop kicking the f---ing seat”.

When the aircraft landed in Brisbane, Gale again turned to the mother and two children seated behind him and said: “They kicked the seat the whole time; discipline the little ­c---s”.

As Gale was about to leave the plane, he provoked the child, saying: “Go on, kick the f---ing seat again and I will break your f---ing legs”.

Then he told the child’s mother: “Ever heard of discipline?

“Why don’t you try ­disciplining your f---ing kids?”

At this point, a concerned male passenger intervened and told Gale to show “some control”.

Gale grabbed the man by the shirt and challenged him to a fight.

“Do you want to go out on the tarmac and have a go?” he said.

Ms Blaszczyk said no charges were laid over this threat as the male passenger did not want to take the matter any further.

The magistrate told Gale that he should have ignored the kicking of his seat rather than “inciting” the child which encouraged them to continue kicking him.

She told him his behaviour was childish.

Gale’s lengthy criminal history was tendered to the court, including a two-year suspended jail sentence for burglary and serious assault in 2009, and a $300 fine for wilful exposure in 2010.