Fair enough. We met a couple of local girls there and, in stark contrast, they took us around showing us their favourite food places and hangouts. We expected that in return we'd pay for their stuff, but they actually shouted us a couple of times. Wonderful girls.
Many locals are out to screw tourists, but it's all they know living in poverty and you'll find it anywhere in south east Asia in different forms...I don't really like it either, but I find it easy to ignore and enjoy bargaining them to bottom price. When they stop smiling you know you're there. In the end, as long as I'm paying what it's worth to me, I don't care if someone rips me off a bit. I actually saw one of the locals attack another (physically) for trying to rip off one of my travel companions, so some are against it too. Being robbed would suck though.
Loved the street food...it's all I ate and with my weak immune system I still didn't get sick.
The only real bad experience that stuck with me was a floating convenience store giving me less change than she was supposed to...then pushing her boat away from ours with an oar and floating away...so basically daylight robbery of 50 cents. It's the principle!
I would like to visit Laos, south Vietnam and Cambodia next time.