One of the things that irritates me more than anything else in traffic is Lunacy #7:

Two vehicles side-by-side on the interstate maintaining the same speed.

As such, I try hard to avoid ever being a lunacar, and am careful to either accelerate or decelerate as appropriate to break up the blockade.

Problem: today, we were driving down the middle lane of the interstate, and a white Cooper came along side me to the left. Once he pulled even with me, the old codger (talking on his cell phone) moderated his speed to match mine. After a few moments, I eased the throttle a bit to help traffic. Apparently, he finished his phone conversation at the same time, and either dropped it in a hard-to-get place, or noticed a blemish on his upholstery that needed immediate attention, and as his gaze went steadily downward, his speed adjusted accordingly.

Feeling satisfied, I put the Odyssey back in cruise control and settled back in. But not for long: soon our good friend came zipping back, and once again paused as he pulled even with me. Fortunately, he then decided to investigate whether he possessed afterburners, and I had no further blockade problems with him.

. . .

P.S.: During my brief interaction with Cooper, I kept puzzling over who he looked like. As he pulled away, I saw he advertised his last name on his license plate, and solved the puzzle. He looked like himself: I used to be on a county political board with him.