The freeway exit I take every morning on my way to work is a little awkwardly-designed, and you can always tell when you're behind someone who doesn't take this route every day.
There are two right-hand turn lanes. The one on the left merges into traffic; the one on the right doesn't, it goes into a new lane.
Now, there's signage; for the left lane there's a "YIELD" sign and for the right there's "YIELD FOR PEDESTRIANS ONLY". This makes sense if you think about it, but it doesn't stick out if you've never taken this exit before.
So you can tell the guys who don't travel this route daily because they're sitting there in the fucking right-hand lane trying to figure out if the lane is clear. It is. It always is. Unless somebody is changing lanes right the hell in front of you (which, TBF, I've seen happen).
And yes, this is irritating. But hey, guy a few cars back leaning on his horn? Yeah, notice how I just gave a quick tap on mine? That's all you need to do.