here in uk my mate who lives opposite fell foul of the police helecoptor, which unfortunately goes over our houses on its way back to the station. Being very paranoid i lined the space between the roof trusses with rockwool, then lined it with space blankets and then a reflective mylar. i have a shower extractor which i've linked into which comes on for ten minutes every 3 hours and vents through the same vent as the shower. Also changed to envirolites. Up until his appearance in the local magistrates court he was constantly taking the piss of my paranoia. Unfortunately the consequence of this was him loosing his job in healthcare, and being unable to get another in the same field due to needing a clear police disclosure to work in the field
YOU CAN NEVER BE TOO PARANOID