What is the definition of Controlled Fumes?

"Controlled fumes" is a term that humorously refers to the carefully managed, almost artful release of chemicals or pollutants that might normally be considered hazardous. Picture this: "The lab's ventilation system was like a high-stakes game of 'Catch 22' with controlled fumes, keeping the scientists in a constant state of mild paranoia about who might accidentally catch the 'other side' and cause a chemical catastrophe."

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Now, here's an edgy sentence for you: "The janitor, in his quest to keep the office 'controlled fumes' free from any unwanted guests, decided to unleash a toxic cloud that would make the IT department's firewall scream in terror and the HR office's HR chief whisper 'I'll take you to the boardroom'."