headphones and ignoring works wonders. if they rip the headphones out of your ears, I hear filling a report with the police can cause him to go away for a bit. you have options. and since you live with them, avoid them like the plague. don't come out of your lair until you know he's either not around or sleeping, if you must venture out and he's there then use headphones, don't have to turn them on, but they can work wonders.