The left lane is for causing road rage. The morons who park out there because they just do not feel like changing lanes very often live there. Probably if you wanted to put one cause on road rage it would probably be it. They like wise may be the cause of many accidents because once you pass them (if you are lucky) You end up going down the road mad and not as carefully had your composure remained in tact.
Police should ticket slow pokes as fast or faster then speeders IMO.
Women are responsible for the rest of accidents. You know when they walk along the side of the road looking cute and distract the male drivers. Or when they are driving down the road forcing the men to look to the right as they pass by looking cute. Then there are the wifes who sit next to the driver looking all cute. I mean women should not be allowed anywhere near the road