"...of the hero, Finn McCool, if one day goes by without his name being mentioned, the world will come to an end. And the way things are going it's good that I mention his name to you tonight." -- Robin Williamson
Haha, I like that one! My favorite reading story to my 6 year old son is Finn McCool. The one where he challenges a Scottish giant. He comes to Finn's house. Finn, masquerading as a 18-foot baby, bites the Scottish giant's hand and then chases him back to Scotland, flinging huge lumps of earth after him.
One of the large holes he creates fills with water and becomes Lough Neagh, the largest lake in Ireland. One large lump of earth misses the giant and falls into the Irish Sea; this lump is now known as the Isle of Man.