Proof (if needed).

It was a warm, dampish, dark evening, and distant Owls were being particularly vocal.

Suddenly we heard a slight rustle beyond the tower, then an eerie sound. We shivered and had a deep desire to bolt for the house and lock the door behind us, but we were welded to the ground with fear.  

The noise became louder, and soon we could see two terrifying figures emerge from the darkness. We clung together; shaking with fear. Death had come to life, and two unhappy souls now came slowly towards us.

"Don't harm us" I shouted. "I'm Type 2 Diabetic, and my wife has a Tarte Tatin in the oven".

"We wish you no harm" came the reply, in a voice that came directly from the underground. "In fact we've simply come for a slice of Pie".

"Oh you wags" I said, recognising a voice. "You had us completely fooled".

Boo Boo, you naughty boy!