So the hunters are strolling through a clearing when they find a large hole. Curious to find out how deep it is, they chuck in a pebble... nothing. So they chuck in a rock... nothing. They look at each other. The scout around and find a really big rock it takes both of them to lift, and they chuck *that* in. Nothing. So they scout around and can't find anything, and they split up, and finally one of'm hollers "I found a railroad tie!" so they chuck THAT in. Nothing. They look at each other. Then along comes a goat, runs up and jumps straight into the hole. They look at each other some more. They decide to just leave, and head off towards the other side of the clearing, when along comes a farmer saying, have you seen a goat around anywhere? And the hunters look at each other and say, well, ma'am, the only goat we saw ran over and jumped into that hole over there. Oh, that couldn't be MY goat, says the farmer. Mine was tied to a railroad tie.