There is an orchid that looks like a human ear. Smoke its leaves, and all words ever spoken near it will force their way out of your mouth.
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In a murder trial, one resides on the judge's bench. Those guilty smoke it to recite their entire trial, then fall dead from lack of breath.
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It is considered very poetic justice. Speaking of which, some judges work poems into the verdicts, to be said with a man's last breath.
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