Experts are taking no chances with an Asian cobra, not even one found in a box with the message, "I am no longer venomous."

The Austria Press Agency says a woman found the sealed cardboard box in a park one Tuesday. "I picked it up, shook it -- and something moved inside," the unidentified woman was quoted as saying.

The poison of the monocle cobra can kill within an hour, so experts at the snake's new home in a Vienna terrarium and aquarium are treating it as lethal, pending further (careful) examination.

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