When you make a cup of water tip over with your evil mind upon a xtard whose transcribing the moldy babble, ruining its little "project".
When playing Hellish Black Metal makes a bible woman stop murmuring the scriptures out loud, and leave in shock. Muttering is rude and even passive-aggressive. Annoyance averted.
When one is conjuring Daemonic Energy, and the walls crack, and a xoid runs to the bathroom to shart itself in fear.