Have you ever tried to get a cat into a carrier and take it on a car journey? It is not easy! They normally know as soon as you've made the appointment! Cats are creatures of habit who like their home comforts and to come and go within their own terrritory as they please.  I have owned and visited many cats over the years and I'm currently owned by our dilute torty called Pebble. I have had great success with caring for cats on a regular basis and building up trust with them over a long period of time.