at least he removed bad block

Many moons ago, in my first sysadmin job,
learning via "on-the-job
training", I was in charge of a UNIX box
who's user disk developed a
block.
(Maybe you can see it already
The "format" man page seemed to indicate
that it could repair bad
blocks.
(Can you see it now?)
I read the
man page very carefully.
Nowhere did it indicate any kind of
destructive behavior.
I was brave and bold, not to mention
boneheaded, and formatted the user disk.
Heh.
The good news:
1) The bad block was gone.
2) I was about to learn a lot real
fast
The bad news:
1) The user data was gone too.
2) The users weren't happy, to say
the least.