Oh you can do better than that... Put on Gorgoroth at ear peircing volume and paint your face up like Gaahl while you're brewing. Make sure she knows it's Gororoth somehow too so she'll be able to google it when she goes back inside. There are some interviews with Gaahl on youtube that will make her head explode if/when she finds them.
If she asks anything or tells you to turn the music down start muttering about decorating your fence with sheep heads and goat skulls in order to represent the flock mentality perpetuated by christianity and how she is doomed to burn in the 3rd circle of hell where you have already been promised a position of authority by the dark lord himself due to your exceedingly evil deeds on this earth. That should give her something to think about while she lies awake at night from that day forward. Oh and some skull paint on your daughter would probably go a long way too.
http://www.youtube.com/watch?v=lty4o-LktNA&feature=related
After that you can start having a beer tasting every Friday night with a few friends where you all sit in a circle in black hooded robes around a fire or some candles in the back yard. Try to have some scraps of chicken or beef bones in plain view and drink from fancy chalices so she'll think you're actually drinking blood.
She'll have a for sale sign in the yard in very short order i'll predict.