Vixen went home with her new family on Saturday and was returned to us the next day!
Apparently they dog-sit their mother's dog a lot and she did not get along with it. So she's back and still in need of a home. I'm so sad she went through all that stress for nothing. At least she seemed happy to come back to us.
If you know anyone interested in a great little dog look at the "CHECK OUT THIS BEAUTY" thread for info and pics!