Yeah, well... In a universe where people routinely go speed limit + 20 in the right lane (the eastern half of Massholia, for instance), getting off the throttle to drift down to the speed limit occasionally produces some anxious moments when you're driving a 3,000 pound econobox. You look in the mirror and see nothing but grill. I'm often tempted to launch a beer bottle in self defense.
When I started towing a boat around, I became a lot more polite around truckers. I had no appreciation for the challenges they face with a long rig and lousy acceleration and braking.
I wish people went 20 over the limit in the right lane around here, half the time they're barely hitting the speed limit in the left lane...