Hi there,   Looking for a few ideas.  We moved out to a fairly rural area about 9 months ago, onto some acreage.  Our property backs onto a ravine that extends fully into the wilderness...thus we get all sorts of fun visitors.   I'm obviously concerned about the visits we've had thus far from black bears (Mama bears and cubs, big male bears, etc); Cougars we can't see - but we know they're in the area; Coyotes; Stray dogs.   My son is a very precocious...