Laurelin
The two aspects of "cat" in the Druid Animal Oracle that always stand out to me are sensuality and detachment. That cat in the three of pentacles reminds me that the man is not connecting with the people near him. He is removed from them, absorbed in his work. There's a third keyword, but I can't remember it right now. Perhaps it has another pertinent link. I think it was defense or protection or something... anyway, remember the aloof nature of the cat. Who is more aloof and detached from the world around him than the craftsman on a roll?? He's too busy connecting with something else to worry about the weather, the onlookers, or even that cat rubbing against him. He has a different task.