There was once a young witch who fell in love with a cowan, and they decided to marry.
Now, in those days people felt strongly that if you married out, you had to leave the Craft. But there you were, it was love and no price seemed too high. The date was set, the banns were read. On the chosen day, the church filled up with people and the witch and her intended stood before the altar.
But just as the priest is about to pronounce them man and wife, crash! the door flies open and a broom comes sailing in. First it knocks the old priest over the head, then it chases the boy out of the building, and next thing you know, there it is again, back for more. Everyone was terrified, and they all got out of there as fast as they could.
So they picked another date, and the banns were read for a second time. The church fills up with even more people, come to see the fun, and the service begins. But this time, just before they start, they lock the door.