I had a similar experience a few days ago,when a LC ,driven by a man in a disha dasha, screamed past me on the racecourse road.There were several small children inside playing around,standing up,play fighting etc.The vehicle was weaving from one lane to another,into gaps not really big enough,causing a lot of hard braking from other drivers. I don't know what speed he was doing,but he left me standing and I was doing over 80k at the time.Like you,I dread to think what would have happened if he'd crashed,but it wouldn't have been very nice. What they do on their own is their look out,but to behave like that with children inside is utter madness.