The rules are: you imagine that you are literally invisible and find a way to cross the road that doesn't rely on the drivers' cooperation with you or the law. The drivers don't know you exist, because you are invisible.

Playing that game allowed me, for example, to jump onto the hood of a car that stopped at a red light briefly then hit the gas just as I walked in front of it. I was playing invisible man, as always, and had imagined what I would do if that guy, who was stopping, decided to take off again just as I got in front of his car. I imagined jumping onto his hood, which I did so quickly when he hit the gas that I landed on his windshield staring in at him with a grin on my face (instead of ending up under his tires.)

You can't protect yourself from everything, but playing the invisible man game each time you cross a street with traffic is a good strategy. I should add that I can't really play it if I'm on the phone, so I pause my call ("oh, um, hold on a second, I'll be right back"), play the game, and resume the call on the other side.