At first glance, this seems both ridiculous and sad: To test whether or not oysters in France are safe to eat, officials inject three mice with oyster liquid. If two of the mice die, then the oyster producing region is shut down. This year a failed mouse test caused the closure of the Archachon Bay region, near Bordeaux, for the 5th consecutive summer. But farmers claim the test is "meaningless" and " a sham and a fraud" and, in defiance of the health department, are continuing to harvest and sell oysters. Read more here. 
Hama Hama Oysters: Not Tested on Animals.