Another few reasons for on board cameras--
Todays events coming home from the fucking city (BTW if i never ever go back into the city
I would be very happy)
I am at a light on the left lane,
Asshole in the right lane does a U-turn around me as the light turns green i almost slammed into him.
I am approaching another traffic light and an asshole on a skateboard playing with his cell phone almost crashes into me head on -- if i didn't stop and honk the horn obnoxiously i would most likely have gotten sued even though it would have been the idiot running into my truck (btw did i mention that i hate the city?)