Man Takes Holiday from Being Human to Live as a Goat.
Thomas Thwaites, a conceptual designer from England, is passionate about how humans could use technology to fulfill desires. So in September 2014, he spent six days at a farm in the Swiss Alps, using technology to realise his dream of living like a goat!

Thwaites designed special prosthetic limbs that allowed him to move on all fours, and even had a fake stomach fitted so he could graze on the open meadows. “My goal was to take a holiday from the pain and worry of being a self-conscious being, able to regret the past and worry about the future,” he said. He wanted to experience being a “nonhuman animal,” which he believed would be a lot “calmer and simpler” without the “existential terror” of everyday life.
http://www.odditycentral.com/news/man-takes-holiday-from-being-human-to-live-as-a-goat.html#more-47085