The 26-year-old driver and his passenger narrowly escaped injury as the object cracked the glass and, despite his shock, managed to keep control of the car. Two young white boys, believed to be aged about 11 years old, were spotted on the footbridge leading from Caeleon Close in Claygate, but have not yet been caught by police. One is thought to have dark brown hair. The man was driving under the bridge just after 4.30pm on February 26 and has been left with a bill of around £100 for repairs to his car. A spokesman for Surrey Police said throwing objects at traffic could be extremely serious and there was no doubt that, if the driver had lost control of his car, he and other road users would have suffered serious injury. “We cannot stress too strongly just how dangerous it is to throw objects from motorway bridges,” he said. “We would appeal to parents to impress upon their children the consequences of doing this. “We are bringing more offenders to court to face justice and anyone caught throwing objects onto the motorway will be dealt with appropriately.” In just six months there have been 17 reported incidents of people launching objects at cars from footbridges over the A3. This is the second highest total for motorways covered by the Strategic Road Network, which patrols and collects data for the county’s motorways. One of the most high-profile cases of people throwing objects or stones from motorway bridges is that of 53-year-old Michael Little. In 2003 the Essex lorry driver was killed when a brick was thrown through the windscreen of his cab on the M3. The culprit, 20-year-old Craig Harman of Frimley, near Camberley, admitted manslaughter after originally being charged with murder. Mr Little died from heart failure after he was hit on the chest by the brick but, despite shock and injury, he managed to steer his 44-tonne lorry to the hard shoulder in the seconds before he collapsed and died. Police launched a murder hunt and finally caught up with Harman through a groundbreaking familial DNA technique. The method involved matching blood found on the brick to a sample from a family member of Harman, which was held on the police database. Drivers on the M3 have also been the victims of concrete slabs being pushed off bridges by schoolchildren. A letter from Mr Little’s partner Sue Norman is included in a teaching pack for schoolchildren in Surrey called Just A Stone’s Throw. She described Harman’s actions as a “senseless act” and said he was “mindless of the hurt and devastation” he had left behind. Surrey County Council’s senior road safety officer Jane Siegle said the pack had been developed by the Highways Agency in partnership with Surrey services. “As a road safety officer for schools in the Surrey area I understand how peer pressure can compel children to do things like throwing objects off bridges,” she said. “The packs help children understand how heavy an object becomes as it falls from a bridge and how much damage it can cause to a car or driver. “It will help them to stand up to their peers if they are being pressured.” The pack highlights the dangers of throwing objects from bridges and the emotional impact it has on the families of those who have been hurt or killed. Surrey Police would like to speak to anyone who has any information about the incident at the Claygate footbridge. Call the police on 0845 125 2222 or contact Crimestop-pers anonymously on 0800 555111.