I know you meant that ironically, but something like that really happened a couple of decades ago. The product involved was childrens' sleepwear.
Anybody else remember the federal regulation that demanded that all children had to wear "flame retardant" sleepwear?
This meant parents had no choice but to buy "TRIS" treated clothing, if they wanted their kids to have jammies and nighties. (TRIS was a flame retarding chemical.)
And all-cotton pajamas for children was banned! Too "dangerous"!
To get around this idiotic regulation, a few brave small retailers marketed all-cotton pajamas as "underwear" or "playsuits." They had to put labels on them like yours...
Oh, and the best part was this: TRIS was found to be carcinogenic (just like mercury in those curly lightbulbs is poisonous).
Thankfully Japanese tradition saved our kids from all that nonsense.
I thought the best part after finding out that TRIS could cause kidney and bladder cancer was when Sears (IIRC), and some other American companies that were sitting on a lot of TRIS sleepwear marketed it in Europe as High End, fancy schmancy sleepwear for kids.
WARNING! Mixing the contents of this package with 5 gallons of water, and... (rest of the detailed beer recipe followed) ...is a VIOLATION OF FEDERAL LAW!
Well, not according to some FReepers who want to stop the EPA's court-ordered rules to stop it from being freely spewed from power plants.