On Fruit Flies

If you keep fruit flies in a jar with a lid they will try to find a way out at first. Then, after awhile, they stop trying and will accept their boundaries even if you remove the lid. They will stay inside the jar and live their little lives.

Children who are accustomed to playing in a fenced in playground will also respect those same boundaries once the fence is removed. It takes that special kind of adventurer to explore those trees that had once been beyond the fence.

Me? I've lived with invisible fencing for a long, long time.