Happens all of the time here.
No one wants to wait 3 seconds for anything, and no one wants to be behind someone actually doing the speed limit.
If I'm making a left turn and have to wait for traffic before turning onto my street, without fail, EVERYONE behind me will try to nudge around me on the right so that they don't have to wait.
If someone is turning right, even without having to yield, everyone is clustering to wind around them so that they don't have to slow down...
I only pull stuff like that when someone is just sitting there in the middle of the road not turning or moving, or when someone is coming to a COMPLETE stop just to make a turn, even though there is no sign.
You really need to see a neurologist. - Wagegoth