About 15 years ago, I bought a fly tying vise from a company in California. It came with a tag written in full bore lawyerese that said in so many words “Don’t eat this object because California has discovered that ingesting certain ingredients in it can cause cancer.”
I still have it in the freezer. I'm afraid to eat it.
Tom
P.S. More recently, I saw a similar sign posted at the entrance to a hotel in Emeryville, CA. Luckily I saw the sign just as I was about to take a bite out of the building. Close call, that one.