I read with amusement yesterday, that Spike Milligan had finally triumphed in his wishes to have a specific phrase on his headstone. Apparently, the church did not "think it appropriate" and had refused. Court case, blah blah blah, finally allowed, but written in gaelic.
Former Doctor Who, Tom Baker lives next door to a cemetary. He tells the story of how he bought a gravestone for himself, for when he is buried there. On it is carved, TOM BAKER. He got up one morning to find that someone had added, "is a twat".