Just because you may have a Constitootional right to "let 'er rip" anytime does not mean dat it would always be prudent and/or proper for you to actually do so indiscriminately, such as if your butt is near someone's face, if you're canoodling with a romantic partner in bed, etc.
A stupid-a** late-18th-century legal document regarding either brass/wind instruments or baked beans (da handwriting and word-composition were both done so poorly dat nobody knows for sure which topic it addressed) which was penned by a group of old farts who didn't have a clue what they were doing.
Ben Franklin actually wrote an essay entitled, "Fart Proudly", so maybe he was one of da original drafters of da U.S. Constitootion.