I've noticed in the years I've been driving that about half the people on my town don't indicate properly or at all, especially at roundabouts. There are lots of big roundabouts in my town and it's a nightmare trying to guess whether that car that's indicating left is actually coming off or if they're still going round (usually still going round 
) or the car that looks like it's going right is actually going straight across etc. etc.
I think it would be a whole lot fairer if someone who caused an accident by indicating wrongly had 100% fault automatically. E.g. if car A is going round a roundabout, indicating left so car B pulls out but then gets smashed into as car A meant the next left, the fault should lie wholely with the driver of car A, even though car B should give way to the right.
AIBU? Or did that make no sense :o