Here's something that reminds us that we can never be sure at what we see, that we can never judge the book by its cover. Billy Mays, the pitchman trusted by millions, did not look as if he was a cocaine user. But his autopsy revealed that he used cocaine days before his heart attack and that the cocaine had contributed to the fatal heart attack. You never saw the sign in his eyes in his commercials, you never saw that the man trying to sell you different products used cocaine. But of course, we could not also use the autopsy reslt to judge Mays' character.
