Three men have been caught in the act inhaling from balloons while they were driving along a busy motorway.
Three people have been filmed driving along a UK motorway while inhaling from a balloon, Metro UK reports.
Even the driver can be seen sucking back air from the balloon, possibly because it contains nitrous oxide – also known as laughing gas or hippy crack.
They were captured late at night by a passenger of another car who spotted the car swerving along the road.
They flash at them apparently in a bid to get them to pull over and eventually they move over into the left hand lane.
However they seem unperturbed and continue to inhale whatever gas is inside in a strange way, rocking backwards and forwards as they do it.
There is no evidence to say whether or not they are inhaling laughing gas, and it could be a prank.
One of the people in the following car says: ‘What are they doing?’
Another adds: ‘Mental, what the hell, look at them. They’re all over the place.’