Always with some tools, sometimes with others.
For example, a drill press is generally very quiet, but sometimes for certain types of drilling I can get a loud screechy noise out of mine, and if that starts happening I will sometimes "stop the press" and put on earmuffs.
On the other hand, my Ryobi miter saw is so loud that if I forget to put something on I know it instantly when I start the saw... hopefully that never happens again!
For example, a drill press is generally very quiet, but sometimes for certain types of drilling I can get a loud screechy noise out of mine, and if that starts happening I will sometimes "stop the press" and put on earmuffs.
On the other hand, my Ryobi miter saw is so loud that if I forget to put something on I know it instantly when I start the saw... hopefully that never happens again!