Be selective on where you are going. there are places i avoid driving through with or without fancy things. I rarely drive through the north or east side, even though growing up i spent alot of time in the northside i know how the hoodlems are down there.
Don't bring a canon/nikon/etc labeled bag, instead just keep your camera in a back pack, don't flash your big fancy rings, turn up your sound system, etc. basically, don't draw attention to yourself. figure out where you're going, go there and move on. if you ask for directions, they're going to know you're not from around there.
I don't know if it's legal to carry mace in colorado/denver or not, but you buy yourself some aerosol bug spray, maybe the wasp one since it sprays more in a stream... though i don't know how well that works. i woudl assume it would burn the hell out of someone's eyes.
As I said, the east side and northside are probably the worst. East colfax, definitely would not go during the night or even during the day bring someone with you.
I've been wanting to go to some of the city parks and downtown to get some shots, if you ever want to "buddy" up, let me know.
