Shes is going to have a miserable life and very likely will go on a `special ride' one day 50 miles away, dumped in other words. Do the right thing, sneak her into your house and out the back into a car at night and off to the rehoming place. Simple. Warning the owners means that special ride may take place earlier than the natural progression of their boredom with their animal. So many people treat animals like toys. A fad, a status thing, an accessory. Then get annoyed and bored and regret their `purchase' It will take you no time at all and you feign innocence at the rescue. You found her cowering alone 2 miles away didnt you...didnt you?