Funny how you can be having a normal, nice day with nothing special on your mind and as you are driving your dog to doggie school you stop at a red light and casually watch traffic crossing on the I 75 bridge above and in front of you.  And as you wait for your light to turn green you notice a semi coming from your left up on the freeway, not doing anything special or different, just coming up to the bridge.  And suddenly you realize how fast that semi is coming toward any stationary spot, and you realize finally and for sure that it wouldn’t have mattered if your Dad had been in a bigger vehicle.  You can see that it wouldn’t have mattered what size car he was in, that he didn’t have a chance, and as the semi comes over the bridge and passes your imaginary stationary spot suddenly you are inside a car that is spinning around and crashing down and your blood and brains are splashing on the passenger airbag and on the back door and there is nothing, nothing at all that you can do.   And then you shake you head to get that vision out of your brain, and the traffic light turns green, and the dog is restless and you move on.  But a mile or two down the road you can’t remember where the turn is to get to doggie school; you aren’t really sure where you’re going, as you fight to put the vision back behind the vestiges of a normal day.