Two guys were out walking through the woods and came across a large, deep, dark hole. One picked up a rock, threw it into the hole and listened. Not a sound.
The other guy found a bigger rock, dragged it to the hole and toppled it in. They listened for some time, but again, nothing.
They both agreed that this must be one deep hole and that maybe they should throw something even bigger into it. They spotted a big log close by, and picking it up, they grunted and heaved it to the hole-side, and rolled it into the depths. They listened intently...... still nothing.
Then all of a sudden, a goat came racing out of the woods, running like the wind. It dashed right past the men and flew straight down the hole. The men were astounded, but then all was silence again. They backed off the way they'd come, and pretty soon ran into an old farmer - who asked the men if they had seen a goat. They told him of the bizarre incident they had just witnessed, and asked the farmer, if, by any chance, this could have been his goat. A magic goat.
The old farmer shook his head slowly: "No, that can't have been my goat ... he was chained to a big log."