I will qualify what I posted. I should have worded it better, and not worried about liabiltiy or being PC. Yes it is a great invention, and one that will definitely save a few digits, for some people. I still think it is a great idea. For those who believe that they need it. So if you think you need it.. as we say in the Canada.. fill yer boots eh
Now.. for the rest of the story
Would I buy one
Not on your life I wouldn't.. or any other circumstances either. Not one piece of equiment in my shop has any extraneous safety gear except for my jointer. Oh, btw, my jointer is the tool that took off the ends of my left hand ring and middle finger. Thankfully they grew back.. but half of the first digit of each finger was jointed clear away. That is the only tool that has a blade guard. Oh, and that jointer became mine after the accident. I figure it bit me once, it never will again. My table saw took care of the rest of that ring finger.. which is why I cannot play anymore. Mostly because there is a piece of broken bone that gets in the way when I finger the strings. Ifn I was a southpaw, it might not matter, but I am right dominant.
I have had like George too many close calls with so-called safety equipment. As George said, many of these so-called safety devices are accidents waiting to happen. Many of them whilst good in idea and design, in practice provide a sense of complacency in an arena where complacency will lead to serious accident.
As I have said before... and I know anyone over 50 will understand what I am saying, we grew up, learned our crafts and skillsets long before OSHA etc, decided that we were too daft and needed help to work safe. I only know of one or two professional woodworkers with 40 or more years in the profession that are actually missing digits, limbs or other extraneous parts of their bodies.
For the part time woodworker these devices may provide a margin of safety. They may also save a finger or two. However, and unfortunately they will instill complacency and that will end up in accidents and any ER can attest to that.
I will repeat again... no safety device can adequately replace common sense, good safety procedures or adequate attention to the job at hand.
This applies to any craft, any situation, any shop.
One last comment. Yes I have had accidents in the shop. Chisels, knives, bits, oh you name it, I probably did it.. but those things were the result of doing something stupid, something I knew better and because I was not paying attention or I was in a hurry. Guards would not have helped one little bit.