Yeah, they are dangerous. A kid, well, a bloke in his twenties that I worked with, was out on his sports bike with three mates. Riding quite quick and a woman was pulling out of a side road turning right onto a main road towards them. They saw her and slowed down. She saw them and stopped halfway out, they opened up to go past her on the other side of the road and just as they got to her she started off again. All 4 hit the car one after another. Two of them including the bloke I knew died of their injuries. I’ve been knocked off of my bike three times through absolutely no fault of my own and managed to walk away from two of 'em each time with very little injuries. One was a bit worse, stretchered to hospital with back and neck injuries. Painful, but still nowhere life near threatening.