Common sense in North Dakota rule# 1 is keeping your car out of the ditch when not having to stop to take a pee. Variations would be if it's a female you can drive in the ditch and take pictures as long as you don't go through a neighboring fence and hit a farmers cow.
Common sense rule #2 If you stop to pick up a road kill you must use your 4 way flashers or get off the road or at least turn your lights on if it's dark.
Rule # 3 If the roads are closed because of blizzard conditions and you get stuck in the ditch for 3 days freezing your *** off don't expect a rescue from anyone till the weather warms up.
And last rule #4 if you stop in the middle of the Highway to talk to a passer by, make sure you bring a 6 pak of beer.