Fortunately no, not in machining, I have only been using a lathe for the past year and just after I got this one, I came across a very graphic image on the web of a machinist that got caught by a lathe just slightly larger than mine, needless to say you couldn't identify what part of his top half of his body was what and it left a lasting impression of what will happen if I get careless. Since then I have been ultra carefull of what I do on it, I also have had the endless strings of swarf that snakes around the lathe and floor and just make sure I am nowhere near it in case it grabs on to something suddenly. I have had the odd cut from clearing swarf (after the lathe is turned off, I now wear gloves to do that) and been burnt by flying chips as I don't wear anything with sleeves when machining but that is about it.