Drivers in California have become used to lane sharing. But not so other places. Just the other day I saw a video taken of a road rage incident where in order to merge left a lady was waving a baseball bat out her side window threatening the car she was merging ahead of. This resulted in a 3-way brawl on the pavement in stalled traffic. I'd call this hillbilly behavior except I wouldn't want to insult hillbillies. More like cave woman behavior and there was actually some resemblance.