I was working with my mate, laying a wooden floor.
He got a bit edgy, so I asked what was wrong.
"Don't like wooden floors, son," he said.
"Why?" I enquired
"It nearly done my brother in," he replied.
"How did a wooden floor nearly do your brother in?" I asked.
"Well, if he hadn't have had a rope round his neck, when that trap door opened, he would have broken both legs."