Stag definitely has an agenda to discuss the impact of humans on the environment; however, I concentrated more on the story told. Unfortunately, there was not much action, but it had funny parts. I would enjoy attending a divorce party. I mean why not. You come together and accepted my gift at your wedding. I feel I should come back, party and get my gift back. Anyway, the symbolism of the tortoise's long life vs the short lived marriage is a interesting to me. I liked how the author slowly brought out Stan's story. I knew it was coming somehow. Book started light hearted and ended serious. Overall, decent psychological save the earth type book.