“That” said our young client, aged six, “is a turtle.  I want a tortoise.  A Galapagos tortoise.  They have claws.”  We then received a short by emphatic lecture on the distinction between turtles and tortoises, and the coloring on the underbelly of the Galapagos variety in particular.  “And” said our young scientist wistfully, “could they fly???”  Well, not normally, but …