Excellent point. It is absolutely not new. I also avoid those things except salmon, its pinkness doesn't really enhance my personal enjoyment so I'm not hung up on that one. It's easy to buy natural, traditionally made food. Once you go away from factory food you can't really go back.

Are there mods to silence vacuum cleaners? I wouldn't be surprised if the noise were amplified through a speaker inside the vacuum cleaner itself.

You can buy some brands that focus on quietness. Typically they are canister or shop vacations style, and geared toward professionals. Those backpack vacuums you always see housekeeping in hotels use, the dual stage ship vacuums like the Vacmaster VF408