A Proper Haunting

A 21st century family has moved into Gerald's elegant Victorian house and brought in modern abominations such technology and minimalist artwork. They have scandalous fashion and habits - is the teenage daughter courting without parental supervision?! Gerald is not at all impressed. They are not worthy of his abode! Luckily, the humans cannot see ghosts. Give their belongings a proper haunting and annoy them until they evacuate his house!

Mom is an artist with a modern aesthetic. Gerald finds the way she exposes her shoulders and ankles to be quite scandalous.
Dad is a rumpled English professor. His desk is covered in student papers and several days worth of old coffee mugs.
Emma spends as much time as possible on her laptop or phone, technology which befuddles Gerald and strikes him as witchcraft.