Accident videos – Educational question

My two boys, each 6 years old, are now the second time, instigated by another toddler, busted out and walked along a federal road. This time, an attentive driver probably contacted the police, who picked up the four children and delivered them one after the other at home. Now, since the first conversation did not work, I would like to try the shock therapy. I’d like to see some of the video clips of car accidents where people were captured by vehicles. Does anyone know where I could get these clips? It doesn’t have to be with real people. I would be satisfied with crash test videos with dummies. I just want to show the children how dangerous that is and what can happen. I’d be grateful if someone could give me a link.