My notes tell me this relates to the literary character game, "What Kind Of Smoke Are You", where people try to guess the identity of a well known person based on comparisons to things such as smoke (pipe, cigar, cigarette, brand, etc). Animal is a common question as well. That much said, I am not sure how it became the print for today. I have a vague feeling it might be the continuation of yesterday's diner image, a post midnight discussion that I decided to use for the next day in the series. As for how the game came up, maybe something from the philosophy class two of us were taking, or maybe from a visiting artist. Too long ago to know now.