Live animals as keyrings

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http://helablog.com/2011/03/cruel-and-bizarre-live-fish-turtle-key-chains/

Fish and turtles have been sold in Chinese tube stations as keyrings.
I don't know such inhuman thing can actually be allowed in China.
Chinese law doesn't ban this sort of market and unfortunately people
by goods like that.
Why on earth did someone invent such a horrid thing?
It's one of the cruelest things I've ever come across.