I completely agree with you. Always assume the person behind the wheel of another vehicle is either an idiot, impaired, or having a medical emergency. Driving is incredibly dangerous.

That said, I absolutely subscribe to the notion that it is better to be predictable than considerate. So if a left turn light is green, I’m cautious but don’t dilly dally.

Nothing is worse though than someone slowing down to let a pedestrian cross at an intersection without a stop sign. If I’m behind you in a car, you’re an asshole. If I’m the pedestrian, you’re also an asshole because you are expecting me to trust that you see me and are slowing down to let me cross. I’m not walking out in front of a slowly moving vehicle regardless of how many hand signals you give.