Go into the forest in a fur jacket, blend in with the animals until you have an in with the skunks. Find his family and earn their trust, eat dinner with them, watch Peppy Le Pew with the kids, get the skunk's wife all liquored up and video you having sex with her. Set your phone in the attic with the video playing, he'll see it and leave to go back and beat his wife. This is your chance to seal up any holes that the skunk may be able to use to gain access to your attic again.
Problem solved.