If you think you can handle 2, and/or Zoey is left alone for the day, while you're at work then go for it. I couldn't handle more than 1 myself, but more power to you, and I wish you the best of luck in your decision.
Cheers Quad & Gina
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Assume Nothing, Question Everything, Start Thinking!
RIP Megan 3/1998-5/28/2013