MA Police shoot boa that constricted puppy

[Reinz]

yes, horrible ................................like instances when someone jumps into a zoo enclosure and gets mauled to death: why do those animals have to be killed afterwards?

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It’s rule or law of most societies that if an animal becomes a man eater/killer then it is put to death.

Same goes for an unprovoked attack to a human by a dog.

Obviously it does not apply in this snake case.