I have a personal experience of a machete wielding nut job trying to hack at me as I was in his way when he jumped a traffic light queue almost hitting me in the process. Right outside a police station which I reported and nothing was done, they initially told me to go away to another station as they were too lazy to do anything. The other station told me to go back to them, nothing was done they didnt even contact the nutjob. The second police station were more helpful they looked up his car reg number and immediately told me he was a not good person, they knew him apparently.