Labels like this, and there are many, have come about because of the plethora of lawyers in our society. The dangers have always existed and there have always been stupid people. But when it easy for stupid people who are injured to get $ as there are lawyers every where wanting to sue the manufacturer and get awards or settlements of $millions then the manufacturers are forced to try to prevent future problem. As to the person who probably caused the need for this law suit, he/she was probably trying to get high! It used to be airplane glue sniffing.
Some businesses have ceased just because of the high cost of liability insurance that has to be carried on every item ever produced over all time... by the firm just in case one of these events occurs .
I once hear a story about an injury law suit. The idiot was using a rotary mower to trim his hedges. Held it up in the air and ran it along the top of the hedge, and of course got injured. At trial you have a large company who makes mowers and such at the defendants table and a person who is injured and showing it via a missing arm, eye, or other injury or sitting in an wheel chair at the plaintiff's table. The jury knows the injured person is at fault, but feels sorry for the poor person who no longer has a way to make a living and who may have huge medical bills. So what is wrong with making this large faceless company help this poor fellow out, after all they should have put a safety label on the lawn mower! With a few cases where the company has to lay out millions of dollars resulting from the trial, future cases never have to go to court, the company's lawyers tell the company you may loose really big at court. You better just settle and give a way some smaller amount of money to make the problem disappear. These extremes actually do happen.
So who is the stupid person? The hedge trimmer, jury, lawyers, judges.... or the company who makes the product and does not put every conceivable label on the product? Who does not get sued? Only the little guy who has no resources. The lawyers will not take on a case as they can not make big bucks. Oh yes, the lawyers commonly work without a fee or hourly rates, but get 50% of the settlement or the jury award. So, of course, a quick settlement early on, where the lawyer does not have to spend much time or risk losing, is the path the lawyer wants the plaintiff to follow. Just get the cream off the top and on to the next case.
PS. For give my cynicism.