Stock image - credit: Ford
Two white van drivers risked causing a high-speed pile-up on the M5 motorway, after one decided to pass a drink to the other while in the fast lane.
Their astonishing actions were captured on the dash cam of a following motorist near junction three at Halesowen, in the West Midlands during the evening rush hour.
Speaking to the Daily Mail, the driver, who did not wish to be identified, said the pair were driving at around 56mph and were trying to pass what looked like a can of drink between each other.
He said: "I thought it was a crazy and, frankly, a stupid thing to do. I was on my way home. I do a lot of driving as part of my job and I see a lot of stupid things on an almost daily basis.
"You almost become immune to the stupidity, but this was particularly dangerous and it could have ended really badly.
"I really expected the vans to come together and for one of them to have his or her arms crushed. It was quite scary."
Police are now examining the footage in the hope of identifying the reckless van drivers.
Unsurprisingly, their actions have been condemned by road safety campaigners. Philip Goose, senior community engagement officer at the road safety charity Brake, said: "The video clearly shows that these two drivers were putting other road users and themselves in danger of being killed or seriously injured.
"This kind of irresponsible behaviour on our roads needs to be punished, using the full force of the law."
Click play to watch the footage below.