May Contain Evil/Playing With

Basic Trope: An evil product has a warning on the label declaring it to be evil.
 * Straight: Killer Kola is a Psycho Serum which has a small print warning label on the can declaring that it may contain traces of evil.
 * Exaggerated: Killer Kola is a Psycho Serum that has a huge yellow and black warning label on the can declaring it might contain tiny amounts of evil.
 * Alternatively, the label is ridiculously small.
 * Justified: The company that sells Killer Kola do not want to be sued by someone for not listing evil on the ingredients list.
 * Inverted: Goody Gummy Bears has a label declaring it contains massive levels of goodness.
 * Subverted: Killer Kola doesn't have a label declaring traces of evil.
 * Double Subverted:... Unless you view the can under a blacklight.
 * Averted: Killer Kola doesn't contain evil.
 * Lampshade: "Look, it even has a warning label!"
 * Played for Laughs: Almost by default.

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