Which is worse...?

Question: Which is worse? People who indicate and proceed to NOT turn/change lanes while driving or people who turn/change lanes WITHOUT indicating?

It's a question which I still can't figure out the answer to. Lately I've been spending a great deal of my time in traffic (which is odd given that there are fewer students around at the moment what with their exams and all...) and there are an alarmingly high number of individuals who do these annoying things. Another thing which I find frustrating about driving is the lack of decisiveness in drivers.

For example, this morning on my way in, I had the misfortune of being stuck behind some girl who appeared to have had her drivers license for approximately the last two minutes. She was supremely un-confident about having to actually use her car and having indicated, refused to change lanes until she had at least 500m of car-free road on all sides.

I know that Johannesburg drivers tend to be particularly aggressive and that we are not particularly tolerant of other driving styles, but I am a firm believer that one should feel comfortable driving one's car and should not live in trepidation of having to encounter another vehicle, even if they are going in the opposite direction to you.

On the other hand, I know that I really should just chill and not let it get to me. But where's the drama in that?! Drama is what makes life fun!

Golly, I need a holiday...