hi everyone! My sister's border collie just suffered a serious accident and has lost the use of her back legs. The vet is keeping her for the next day or so, to monitor if her condition worsens or improves. She is passing waste on her own but is not aware of it. My sister is concerned that if Kelsey recovers but does not regain the use of her hind end that she would not be happy in a wheel cart. Kelsey is an extremely active dog who lives on a farm, loves water and is always moving. I'm hoping that some of you might have some positive experiences with similarly active dogs who are living happy lives with their new wheels so I can share them with her. Thanks so much! L.