Here is an idea, get a custom strap, made of leather, and have some piano wire run inside it, thus it will withstand anyone with a knife who tries to cut it from you. When you are in the doggy side of San Fran, wear some bad clothes, jeans, and steal toe boots (black), and a jacket [something that is well worn, possibly with some paint on it, and lots of pockets] that is some what loose fitting with your camera [inside] slung on one side of your body. When you are walking, know one will see your camera. Also, do not bath that day your are going to photograph, wear a baseball hat. Do not wear clothes with labels on them. No watch, no rings, no jewerly, and only a few one dollar bills in your pocket. If you must carry ID, in the bottom of your boot. Also no keys, leave them with a friend or family member at home. Now you are in stealth mode, for your photography journey into the zone of unknown. Bring a friend who can look out for you. If you feel the heat, and if there are some shops, go inside, for cover. Change your film inside a store, not on the street. Have a fresh pack of Camel's/Marlboro's with you! 😀
Keep the MP and use it and enjoy it! 😀 Go hard or go home! 😀
MArk
Quito, EC