Is it normal to get really twisted when people leave their indicator..

My grandpa used to say "the blinker only means the light works."....AKA you shouldn't heed it too much, drive defensively. Can never be too careful=)

No that's not normal.

So someone makes a mistake on the road. Get over it.

thats the rules of the road

When ever some one stuffs up on the road, I tell my self, I've made mistakes on the road. No ones perfect!

I get annoyed when people put their lights on in broad daylight- very British trait of mine!

I'm guessing you mean when they leave their indicator lights on after they turn??

But yeah it annoys me too