i live with grey foxes in my area. i was walking my dogs (kelpie and cairn). the cairn keyed on what i at first thought was a cat sitting approx 15-20 ft away. my kelpie saw it and flipped out and started barking like a lunatic, and this animal ran towards us and i saw it was a fox. i tried to walk on down the road and it ran alongside us for several yards about the same distance away from us, occasionally running slightly towards us, then back, until i decided to return home, as i wasn't sure what was going on and did not want my dogs to harm it should it actually get close enough. when i got back to the spot where i first saw it sitting, it sat down! why would it do this? thank you for any help you can give.