For those who want more time with a furry friend than a visit to a dog park can provide, and less of a commitment than a full-time pet would bring, enter: FlexPetz. The company rents out real dogs and opened in New York last October...and yesterday's NY Times article has proof that people are actually using it.Ms. Stevenson explained why she was a customer: “I’m single and moved here from Scotland two years ago, and......