Such excellent ideas, thx ladies...
Excellent thoughts ladies. I actually went by my dog incident situation to get a better look, and the house is hidden in the curve corner (thus aiding in the sneak up factor) plus I could see how it got out... the people have a chain link fence, but their driveway goes thru it, with a double gate for a vehicle to go thru... it was wide open, as I assume it is a pain to shut it going in and out, thus how the dog is out. I say at my house with our dog, that the nice expensive fenced yard does absolutely no good if someone forgets to shut the gate. Yeah, I could also see me "pepper spraying myself"...maybe other squirt stuff would work, if I could get to it in time.