Also born (not borne) of Twitter, the new-to-me knowledge that ducks and geese sleep with one eye open — half the brain at a time checks out so the other half can stand guard against  predators. Which is just the ultimate evidence that California’s ban on foie gras is not about preventing cruelty but about opening up the slippery-slope chute to no meat for anyone. If force-feeding were so unnatural/horrific, wouldn’t the birds snap fully awake as the gavagers came close?