Mistook the Upstairs for a Ghost House

I am a yin-yang man, good at showing dead people their pits. A friend asked me to decorate the mansion of the living into the mansion of the dead. He gave me enough money, so I naturally had to get it right. Paper money, yin and yang sedan chairs, soul-inducing candles, etc. Were all spread throughout the house. But when I went to check it out, a couple actually lived inside. "This house belongs to me! Get out of here!" With a bang, the door slammed in front of me. I froze in place. Do you want to tell them that they can't survive more than seven days in a house of darkness?