The dog is unable to hurt you, get to you, or harm you in anyway,
you get toooo close.
Walking toward temptation places you in harms way, learning the discipline of staying away from and avoiding your unique temptations, will keep you out of reach of the evil one.
Not allowing the devil access, by staying away from him, will only help you to live a holy and virtuous life.
The evil one has no power unless you walk toward evil, toward temptations, and allow him into your life through your weakness.
The devil has studies your weaknesses, so what?
As long as you know your weaknesses and avoid situations in which the evil one can tempt you, So What........
He (The Devil) isn't really so powerful, just rotten and void of anything good,
just stay away from him.