[rikkus]

Instead of relying on other drivers' signals, you could instead use them as extra warning, and instead of driving so close to them you're putting yourself and them and potentially others in danger if they brake when you didn't expect, you could back off to a safe distance.

[phee]

Well, not sure where you read I drive close to anyone. What I'm trying to say is that erratic drivers are dangerous because you learn to predict what a normal driver would do in a typical situation (e.g. jogger too close to the lane => slow down to a safe speed and navigate towards the center).

If a self driving car doesn't reproduce the most common driving style the other drivers should be extra careful around it, some kind of mark on the outside could help.