Good bumper sticker for "your lane ended, MERGE" type of idiots?

I live in a large metro area, & we have a lot of situations (freeway access roads especially), where there is a stop every mile. About a full 1/3 of a mile prior to that stop, huge "lane ends, merge left" signs appear.

Of course, (being in AZ - some of the dumbest drivers in the NATION) - roughly 25% of the drivers in the right lane pretend not to see the signs, and then when their lane is ending, ignore the fact that it is their responsibility to merge and yield to the traffic whose lane is continuing. Usually women, but it certain crosses genders sometimes.

Funny, cuz when 2 cars are side by side, and the car on the right has the legal responsibility to yield & merge, that person has TWO full options: 1) speed up. 2) slow down. But, strangely, some people will pretend that the horrid person is the one whose lane continued. (Even though that is a 100% backwards application of the concept of yielding and responsibility).

It's not just a once in a while thing. It's every day. Hard to believe there are people who will just cruise on through a "it's 100% my responsibility to slow down or speed up to merge" situation, and expect the person who's responsibility it is NOT, to do all of the thinking & braking FOR them. (!!??)

Have you seen any good bumper stickers that might help that person simmer down once they are behind you? Like, "What part of YOUR lane ends, merge left, don't you understand?"

If not, what would be a good saying for a customizable sticker.