So today I was sitting at a red light in a left turn lane. Got the green left arrow. Went ahead and turned left as normal. Girl sitting next to me in the straight ahead lane, texting while waiting at the red, evidently mistook the green left arrow for the light for her lane, which was actually still red. (Or maybe she thought she was in the left turn lane herself, anyway, she was clearly not paying attention to driving) She floored it right into the car ahead of her. Wasn't just a fender bender either, the impact was loud enough to cause all the pedestrians in the area to turn and look.
This, ladies and gentlemen, is why you can get a ticket for using a cell phone behind the wheel in California, even when you're sitting at a red light.