Had a Traffic Special Snowflake on the way to work today. Two lanes in each direction, and a left turn lane at the stop light (in my direction only). There were several cars in the left turn lane, I was in the left (straight) lane, and the driver in front of my stopped in the middle of the intersection and flipped her left turn signal on. There was no break in oncoming traffic for her to turn, and if there had been, she would probably have ended up colliding with the front car in the left turn lane.
I leaned on my horn, and she pulled up and slightly further to the left, but still with her turn signal on, and also not leaving enough room for anyone to get past her (because there was traffic in the right lane), so there was a line of cars backing up.
I honked again, and she pulled through, and stopped in the median just past the intersection, it looked like she was going to try to turn left into the gas station there once there was a break in traffic. I didn't hang around to watch, though.
Irony on top of all this is that about half a block further, there is a stoplight into the shopping center there, so she could have driven on, turned left at the light, turned around in the parking lot, and went back and made a right in probably about the same amount of time.