Teenage driver crashes car moments after bragging about inhaling balloons

This is the moment a teenage driver crashed his car moments after he bragged about inhaling gas balloons.Daniel Ross , 19, spent two and a half hours high on nitrous oxide - also known as laughing gas - and  phoned a drug dealer for more a short while before his collision.In horrifying dashcam footage, Ross can be heard inhaling the Class C drug  as he sets off in his car.Just five minutes later, he joins the A1 near Baldock - in Hertfordshire - and speeds along the road, zig-zagging past other vehicles.Ross then drifts off the road and collides with a bollard causing his car to flip on its side.Miraculously he walked away from the wreckage but his  passenger was left with serious, life-threatening injuries.