![](http://bangor-civic-society-message-board-forum.31.s1.nabble.com/file/n7573524/Capture1.jpg)
Quite randomly using the site stumbleupon with the kids earlier this evening we came to
http://www.stumbleupon.com/su/7In1dP/:U0f@H4IC:p52D2OEm/i.redd.it/obzujyzadkq01.jpg which is the evolution of the alphabet as we know it. So with our new found knowledge I think not generally! but I can see why you say it especially with some of the stones... you can image one person doing it being tempted to write a secret message in it !!