Most people use for safety: so they're always asked for confirmation before removing a particular file. Mike Loukides told me about another way he uses rm -i. When he has several files to remove, but the would be too painful to type with a plain rm, Mike gives rm -i a bigger list of filenames and answers "n" to filenames he doesn't want deleted. For instance:
lsaberrant abhorred abnormal abominate acerbic aberrate abhorrent abominable absurd acrimonious ... %
rm -i ab*rm: remove aberrant (y/n)?
yrm: remove aberrate (y/n)?
nrm: remove abhorred (y/n)?
yrm: remove abhorrent (y/n)?