Tonight, on my way home fairly late, I was too tired, stressed and hungry to deal with the infamous Heron/Bank intersection. The one where you have to merge left across three lanes to get into a left-turn lane. So I did what I usually do when I can't face that move: I rode along on the outside of the intersection and used the pedestrian crosswalk on the opposite corner. As I waited on the pedestrian refuge for the light, I saw another cyclist pull up to wait in the left turn lane.
I had a moment of guilt - she was being a "better" cyclist than me, following all the rules, brave and determined, unlike my tired, schlubby self who couldn't face the extra fear and tension at that hour - and then I realized, as the light changed for me and I rode across the crosswalk, that she wasn't going to get the advance green.
She was even signalling a left turn, bless her, waiting patiently and properly, just the way I hadn't, doing all the things she was supposed to, and she wasn't going to get that green light.
I stopped. Turned around, rode back to the intersection, crossed on the pedestrian crosswalk, and in a lull in the traffic noise, I shouted over to her: "That light is on a sensor. Bikes don't set it off. You could get stuck there for several cycles."
As soon as she heard me, she said, "Thanks so much," and, with a certain amount of relief, I think, took the pedestrian crosswalk out of the middle of the intersection. We crossed with the pedestrian light, she went her way and I went mine, up the hill.
Good deed for the day done. She coulda been stuck there half the night.