That stuff annoys me to. I mean Im a bad driver but I at least know to use blinkers and stuff aha...I mean why wouldnt you its not that hard and its better than having someone ding your rear end lol
It only irks me when it's a sudden turn, or when it's the sort of thing where it'd be REALLY nice to know what the hell the person in front of you is doing, you know? And on top of that, people also need to learn that using blinkers to change lanes on a highway is not an immediate pass to actually do it without looking. I nearly had someone smash into me from the side trying to do that once. :|