I don't have an RV yet, just dreaming. My fantasy is to take a year off from work and RV around the U.S. and Canada with my husband, cat and dog. I read in "RV for Dummies" that you should never leave your pet alone in your RV. This doesn't seem very practical. As long as the temperature is appropriate and they have food and water, I would think it would be ok. Any input? -especially from full-timers? Thanks!