...uh I think it is a hedgehog, not a porcupine. :-)

I've seen the show. It is an elephant farm in Chiang Mai, Thailand. About 80 elephants there, each with their own caretaker. Playing devil's advocate here, the elephants had been used for construction in the past, but now they do these shows. (far less cruel, I would think) The elephants are domesticated (well as domesticated as one can get). So releasing them back into the wild would not be a possibility. Didn't see any ill treatment of the animals. They not only played darts, but also played soccer, painted pictures (with a ripley's believe it or not award too for that) and interacted with the audience. So I'm not ashamed to say I thoroughly enjoyed the show and was amazed. :-D