An SUV almost took my life

All this took place in a few seconds:

Driving up the 405 in the far left lane, I noticed several cars up the road in my lane with their brake lights on. The next lane over also had some cars putting on the brakes, but there were fewer cars. I moved over one lane to the right, but figured I should move over another lane because of the sympathetic braking going on in this lane. I also figured a car from the far left lane might try to change lanes.

I checked the next lane over and was starting to move over when the SUV that had been in front of me in the far left lane suddenly moved over. I turned my wheel more aggressively and continued to change lanes. The space between our cars was probably no more than ten inches–I wouldn’t want to be parked next to an SUV with only this much space, let alone drive next to one at 70 mph.

Once I got clear, I checked the rear-view mirror and noticed the SUV swerve left back into his original lane. What a dumb fuck. If I hadn’t anticipated his maneuver and started the lane change, I probably would have totalled my car, gotten my face bruised on the airbag, and fucked up traffic for an hour.

Analysis of his stupidity:
1) Did not anticipate traffic ahead of him.
2) Did not anticipate traffic behind him.
3) Did not check traffic.
4) Attempted to enter a faster lane after slowing down from 70 mph to 50 mph.