I'm not sure if I should be apologising to you or thanking you. You found me in tears after I'd had my purse snatched and tried to comfort me. Then I saw the thief on the other side of the road, and mentioned it to you. I didn't expect you to run across four lanes of traffic and dumptackle him in the middle of a crowded street. I didn't expect him to get up, hit you hard enough to break your nose and try to run, but for you to take him down again. I didn't expect the police to be so fast. I certainly didn't expect to get my purse back.
Sincerely, extremely grateful if slightly worried about your lack of self-preservation