I had Babu who was "born" with a predisposition for building and had no likes or dislikes. He died of natural causes at about 67 as a trainee builder. I would watch him spend 2 or 3 minutes fixing a hut, then go swimming, eating (one of his particular favorite acrivities) and relaxing at the beach. If I dragged him back to a hut, he would be off as soon as I turned my back. I just gave up on him, I didn't want to kill him, but I was glad to see him go.