Hamlet vocabulary

For 'tis the sport to have the enginer

Hoist with his own petard: and 't shall go hard

But I will delve one yard below their mines

And blow them at the moon

William Shakespeare. Hamlet

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He did not know that the earliest form of torpedo ever used had embodied this invention fifty years ago, although the early users of it took the precaution of attaching the explosive to a spar rigged out ahead of the launch, in this fashion minimizing the danger of the crews behind hoist with its own petard.

Cecil Scott Forester. The African Queen, p.21 (1935)