I don't know what my whippet would do if she found a cat in the garden, and she is always on a lead when she goes out. All dogs will have a prey drive of some kind and, with sighthounds if something runs away from them it is their instinct to chase it and bring it down. Because we don't let her off the lead when there are other dogs around, she has been attacked several times; usually by small terriers running up to her and getting her round the throat; thankfully her wide hound collar has protected her from serious injury; one owner didn't apologise but said it was our fault as 'dogs will attack dogs that are on leads'
; it was last seen chasing a horse that happened to be on the beach that day. As far as people are concerned she is the gentlest creature ever and, even when frightened at the vets when having treatment has never been know to even growl at anyone. I don't leave her with the grandchildren ever, but bought her for the very reason that they are the gentlest dogs I've ever known with people. When brought up with cats and kittens they all sleep and play happily together but if they haven't been brought up with them the prey drive will take over. I have fenced off part of the garden for my dog, mainly because she would eat all of the plants if she could get to them, but don't know what would happen if a cat did get into her area. If I was a young mother I would be more concerned about seeing people with hugs mastiffs/pit bull types that they have absolutely no control over.And the latest craze for buying huskies that don't have any recall and need tons of exercise.