When people ask me why I don't eat meat or any other animal products, I say because they are unhealthy and they are the product of a violent and inhumane industry. Chickens, cows, and pigs in factory farms spend their whole lives in filthy, cramped conditions only to die a prolonged and painful death.

From a PETA video (6 February 2013), reported in "Casey Affleck's 'Go Vegan' PSA", in peta2.com.