Goldfish
I didn't think school fairs gave goldfish as prizes any more, but apparently this one did. All the parents were holding a fish in a bag, most of them pulling a face to say I don't really agree with this, but the kids were so excited. The first bag split forty minutes in, and its resident spent the rest of the day in the hook-a-duck tub. More joined, until the golden shimmer was so enchanting that kids started tipping them in on purpose. We made a quiet exit, before we could be asked to help.