It's an endless argument (and as I've been sitting here typing for most of the day I've helped propel it) but ok then - explain this one ( http://www.themodernantiquarian.com/post/53638 ). Was this quarry man sacked just as he was starting work ? Is it a natural flaw in the rock that has hollowed out with erosion ? Or is the photograph rigged (I hope you've signed the e-petition by the way)? Sometimes these little pits fill with water - no photographs of that though ...