(Mostly posting this because I thought of the title and it amused me.)
As I was on the way to work this afternoon, heading north on Elgin Street, there was a car waiting to turn left. The car behind it cut me off (not sure if he was even aware I was there) to duck out around him. I slammed on my brakes to avoid hitting the side of his car as he did so, and said something loud (a sarcastic "Nice!" I think it was.)
He then proceeded to turn right, once he'd cut me off, and paused for a moment. Switching his turn signal on - which was entertaining - at the exact moment he completed the right turn and headed off down the side street. I rolled my eyes and continued to work.
Coming home from work, south on Alta Vista, I came up to the left-turn lane onto Heron Road. Signalled, merged over into the left-turn lane. Didn't get the advance green, but the green light was still on. There was a car ahead of me making a left. I pulled up behind him and, seeing another car heading toward me, decided to wait till it came through the intersection before turning left. I started to roll forward toward the intersection, though, in preparation to turn.
At which point a truck appeared from my left side, having run the length of the through lane, passed me on the outside (hi! illegal!) and then cut over, turning left in front of me so he could gain that precious half-second of time.
Sigh. I rolled eyes. Continued riding. No point in trying to decide whether the drivers are impatient, or just blissfully unaware. Not sure which I'd rather.