Oh,they use a different character so you can tell the difference between a symbol of national importance and dinner. That's a good idea
Do most characters have multiple meanings depending on the context they used in? If so, since the characters for denoting the critter of the year are often standing alone, they should be unique.
Hmmm....inscrutable comes to mind.
Thanks lorcafed...and since Wormfood is goofing off somewhere, let me welcome you to the Cellar.
Yeesh, ya can't get good help these days I don't know what will become of these kids they're never around when ya need