Traffic
The traffic in Cambodia is crazy. It's a big free for all where there only rule is to not hit anyone else. If you're slower, you stay right. If you're smaller you stay out of the way. The centerline, stop signs, and one way signs are basically all ignored.
There are few signalled intersections but at those (which are built only sporadically, on the major roads in larger cities) maybe around 90% of people follow the lights. That means there's always about 10% of the traffic (usually motorbikes) that just runs the light and merges across traffic.
Another adventure is trying to turn left. Instead of waiting for a break, people turn left and merge into oncoming traffic first, sometimes following the curb or getting one or two lanes in. Eventually they get across to the center where they can merge in to the correct direction.
Anyways, here's a video!
http://www.youtube.com/watch?v=PDHmKXo88is