When we were schoolgirls we were keen readers of Dennis Wheatley's novels and decided we'd try to raise a ghost. We screwed up our courage, evaded our parents and went to the graveyard at midnight. Chris said we should say The Lord's Prayer backwards. Jenny said we should say it in Latin. I got the job of writing it out in Latin so we could say it backwards together.
We ran for our lives when there was an almighty shriek and a white ghost swooped low over our heads. That dratted barn owl owes me a pair of dry knickers!