Double turn lanes, has happened to me,,,, I'll bet 30 plus times! Some times if I am driving a beater I've considered holding my ground, not for money but for principle.
Also, getting off subject, If you are in a turn lane waiting for a clearing from on comeing traffic,,,, and you are tuning into a double lane,,, and the fellow coming at you is signaling to turn into the same direction you are waiting to turn into,,,, YOU BOTH CAN TURN AT THE SAME TIME!
The reason for this is because he sould maintain the same out side lane, and you can pull into your inside lane. SO MANY PEOPLE SWING WIDE!!
I do this a lot and get filped the brid, honked at, gleared at, etc. Funny thing is they are dead wrong and don't even know it!!
The reason I mention this is because well over 90% of people don't know this rule, and it would help clear intersections quicker.