"In a perfect world, animals would be free to live their lives to the fullest: raising their young, enjoying their native environments, and following their natural instincts. However, domesticated dogs and cats cannot survive "free" in our concrete jungles, so we must take as good care of them as possible. People with the time, money, love, and patience to make a lifetime commitment to an animal can make an enormous difference by adopting from shelters or rescuing animals from a perilous life on the street. But it is also important to stop manufacturing "pets," thereby perpetuating a class of animals forced to rely on humans to survive."
-PETA pamphlet, Companion Animals: Pets or Prisoners?