Oh yea, the nail on the head. Here's something I plopped in another thread

"It wouldn't be a big deal if the car couldn't kill me, or if I could total the car and possibly kill the driver in the impact with my bicycle. With great power comes great responsibility. The other day I carve around the front end of a cab jumpin' from his lane to mine without looking or signaling. I give him the finger and the "wake up f*^k face!!" He catches up and berates me for not signaling. I explain to him that I'm already in my lane and don't need to signal from behind him that I'm in my lane, but that he does when switching lanes. blah blah blah he says totally not getting it. Then I ask what would have happened to his cab if he had cornered me (I was doing about 40k). "Very little' he says, right I tell him and I'd be lucky to be alive as he would have piled me into the phone poles and mailboxes. As I explained the repercussions and how they differ from the perspective of a cyclist you could see his face change visably as this sunk in."