A father and son moved into a new house.
One day, the father saw the son was looking oddly pale.
“What’s wrong, son?” he asked.
“Dad, do you believe in ghosts?” the son asked.
“Of course not,” said the father.
“Ghosts don’t exist.”
“But Dad,” the son replied,
“our maid said that there is a ghost in this house.”
“Son, pack your bags. We’re leaving,” the father said.
“Why, Dad?” the son asked.
The father replied,
“We don’t have a maid!”