the Daily Mail: "I took interest at what was happening inside the police car and sat at the bus stop for about 30 seconds. Then the man flipped. I dropped my bag, which had my tablet and phone in, and ran after him. I didn't think, it was just instinct. When I was running I was just hoping I could get him down, because if he did that to police officers he could do worse to me. You can see him point at me and say I know your face"