Jack was a practical man. Being a practical man meant that his dear wife was forever asking him to do things: mend the gate, dig a new garden, pave a path, put in a fish pond… Anyway, they needed a new fence because the cow had got through the rickety old fence and eaten Mrs Jack’s roses.
“We need a new fence,” said Mrs Jack. Jack thought about it and decided that the new fence would need six posts, so he needed six postholes. He hitched the trailer up to the back of his tractor and headed for town.
He went to the wholesalers and asked for six postholes.
“Sure,” they said. "What size?”
“Big ones,” said Jack.
Six big postholes were loaded onto the back of Jack’s trailer and off he set for home. The road was bumpy and half way home Jack looked and noticed that a couple of post holes had fallen off the back of the trailer.
Jack back-backed to try and find them. He backed into one of the holes, and has never been seen since.