Whippy (the Whippet) has never been happier. We are on a few acres and for the first few months of having him we were always getting calls from our neighbours. "Whippy is here again!" We tried building expensive fences and restrictive dog runs. We would often have to leave him locked in the house or on a lead. Finally I rang the Dog Line, bought an FM electric dog fence and laid a perimeter wire around an acre. Admittedly, sometimes the training was a little traumatic for Whippy and us as he worked out where the boundary was and the cause and effect of the collar. After a few weeks however, he had it worked out and was confidently racing around and having fun. That was 18 months ago and he hasn't strayed at all since. We are hoping to get a playmate for Whippy soon and will be contacting The Dog Line for an additional collar. We would (and have) highly recommend trying an FM fence from the dog line; their product quality, service and advice have been great and as I said; Whippy has never been happier. Tony M St Andrews VIC