John and Matt were hiking in the mountains when they came across a huge hole which looks like it goes straight down.
"Wow," said John. "I can’t see the bottom. I wonder how deep it is."
"I dunno," said Matt. "Let's see." With that, he picked up a rock and dropped it into the hole. They both craned their necks to await the sound of the rock landing but there was no noise.
"Hmm. Let's try a bigger rock," said John, as he lugged a basketball sized stone across the path and lobbed it into the abyss. They waited a couple of minutes but heard nothing.
“Maybe the bottom is soft soil or something. We need something noisier,” said Matt. They looked around and came across an old railway sleeper. It has some nails sticking out with metal hoops on, so they figured it had to be noisy enough for the task. They took an end each and carried it to the hole before heaving it into the void. As they waited to hear it bottom out, a goat suddenly appeared and streaked between the two of them, bleating like mad before leaping into the hole.
They were perplexed and worried for the fate of the goat and, as they pondered that, a chap came up the path behind them.
“Have either of you guys seen a black and grey goat?” he asked.
"Yeah, just now," said Matt. "Weirdly, it just tore past us and threw itself down there." He pointed at the hole and the new chap took a look in.
"Yeah, they say that is over a mile to the bottom.” said the new chap. “It’s was a tin mine once upon a time but it’s disused now. Thanks for your help but that couldn’t have been my goat. No way old Billy could run anywhere. He was tied to a massive railway sleeper.”