Don’t know about you, but I never really knew my dad. He wasn’t around much, never bonded by throwing a ball with me, and was just this vagabond taxi driver whose only advice to me was, “never drive a cab.” His sole gift to me was a mechanical pencil. It is why I wrote this story collection, which includes a prequel to the movie “Collateral,”and which starred Tom Cruise, whose sociopathic character in the film is a total mystery, which I wanted to unravel. (Dad went a bit nuts, in the end, too.) I used the pencil to write Ray Bradbury, who responded to every letter with his own advice. “Keep writing,” was his message, mostly. Ray once signed a response, “your honorary Papa.” That letter is now framed. I’d told Ray about my dad, you see. We all have our stories. Now you know one of mine.