More video clips of construction workers misbehaving on site have been unearthed on YouTube

More videos showing construction workers misbehaving have surfaced on video website YouTube, prompting fears of an industry-wide trend.

This time some of the workers appear to be wearing Mitie jackets. One shows a worker hurling himself into a pile of empty cardboard boxes, and another – which has since been removed from the website – shows two workers simulating sexual intercourse.

Two other videos were posted, one showing a man in hard hat and jacket sitting in a cement mixer, and the other showing a man being knocked off a high platform by a friend as he reaches for a lighting cable.

The new videos support NG Bailey chief executive Mark Andrew’s fear that the original videos involving workers from his company are indicative of a wider problem.

But Considerate Constructors chief executive David Hardy said there was no evidence this was happening beyond isolated incidences: “Our monitors come from the industry, and we’re very surprised that these things are happening at all,” he said. “I don’t think we’re seeing a true picture of the industry.”

A spokeperson for Mitie condemned the behaviour in the videos, citing its well-established health and safety policies: “We are extremely disappointed that the significance of our values has been undermined. A full investigation into these incidents has already been launched.”