Four teenagers nearly missed the start of a GCSE exam after a driver parked in the middle of the road and refused to move.

A mother was forced to take the pupils to St Clement Danes School in Chorleywood after a BMW and school bus tried to go past a parked car in Berry Lane, Mill End.

But the driver of the car got out of his vehicle, after refusing to move, and walked off for 15 minutes. He then returned and “reversed at speed” towards the junction with Tudor Way.

Four pupils were due to sit their German GCSE exam on Wednesday morning.

The driver of the BMW contacted Reynolds coach company and threatened to sue them for “loss of earnings”.

One year-11 girl, who asked not to be named, said: “I was really angry he was taking so much pleasure in it.

“I couldn’t really concentrate properly during the first exam because we had nearly missed it.

“I am so angry he has effectively got away with what he did without any repercussions. He made 30 people late for school and four of us were going to an exam.

“My friend’s mum came and took us to school. “As we were getting off, he was being really sarcastic and saying ‘I’m really sorry kids. I told him I had a GCSE exam and that we would be late because of him, but he was like blame your bus driver.

“I have no idea why he decided to do it.”

The bus full of schoolchildren was not allowed to reverse because of health and safety rules.

Lyndsey Reynolds, manager of the company, told the Watford Observer: “Our driver was very calm and didn’t cause an argument.

“The other driver parked his car in the middle of the road, and then he walked off with his girlfriend. He had plenty of space he could have moved into. But he jumped straight in front and refused to move.

“It was a ridiculous situation. The driver came back and then just reversed down, at speed, to the junction with Tudor Way. It was absolutely disgusting.

“I had a conservation with the driver yesterday and he threatened to sue the company for loss of earnings.”

Police were initially informed of the stand-off, but the report was removed when the driver moved.

In a statement, St Clement Danes School said, “A small number of students were brought in by a parent on Wednesday morning because they were concerned that they might be late for a German GCSE exam. The students all arrived in good time for the examination.”