We used to get a lot of 'boy racers' going up and down our street at ridiculous speeds. One in particular was just an awful and rude person, after speeding up to us, he stopped at our drive while we sat in the car (with me, my hubby and 2 young sons in the car) and waggled his tongue at us before driving off again. Well a couple of weeks later we spotted his car parked at a house a street away and realised where he lived. We knocked on his door and told his 2 absolutely mortified and very stern parents all about his speeding and rude behaviour. They called him downstairs, made him apologise and he promised to tell all his friends not to speed up and down our street any more. He stuck to his word and we've had very little speeding up our street since! Result!