It is important to leave feedback to warn others in serious situations, but it is also smart to consider the long-term consequences of racking up lots of negatives because you ‘negged’ someone over a small oversight or a misunderstanding over a three-dollar item.

She didn't like his clothes or grammar and pitched a snit fit.

to mount a specimen on a small plate of glass for viewing by a microscope

For in the first it finds the mind naked and unprepossessed with any former notions, and so easily and insensibly gains upon the assent, grows up with it, and incorporates into it.