YYC- what is the image that Brent sent?
I know its a bad habit to do but I have often left the key in the chuck also, but have never experienced a flying key. Maybe it's because its only left in after removing stock so there is never reason to turn the lathe on again. I know its not a good practice and try not do it on purpose.Another bad habit I had with that mini-lathe was leaving the key in the chuck. I launched the key more than a few times. That habit never followed me to my Utilathe and I think the reason for that is there are more controls to manage on it. I now have a routine of scanning from head stock to apron for what's set to what before hitting the power.