“Yes, let's consider,” said Bruno, putting his thumb into his
mouth again, and sitting down upon a dead mouse.
"What do you keep that mouse for?" I said. "You should either
bury it or else throw it into the brook."
"Why, it's to measure with!" cried Bruno. "How ever would you
do a garden without one? We make each bed three mouses and a half
long, and two mouses wide."
I stopped him as he was dragging it off by the tail to show me
how it was used...
-- Lewis Carroll, "Sylvie and Bruno"