Thought this was a learning moment.
The halo and horn effects.
This has to do with generalizing about people, things, places, or events.
With the halo effect, if we like (are positive) about one or a few things about it, we may put a proverbial halo on it and treat or rate everything about it as great.
Similarly, with the horn effect, if we dislike (are negative) about one or a few things about it, we may put a proverbial horn on it and treat or rate everything about it as horrible.
This means we're not really being objective or balanced in our assessment.
Usually, it's not all just good or bad, black or white--but good AND bad, black AND white.
And obviously, this can cause us to make bad decisions based on poor analysis and judgment.
Therefore, the importance of taking a step back, looking holistically at all the facts, and evaluating things for what they really are, rather than making snap calls to judgment--and poor ones at that! ;-)
(Source Photo: here with attribution to darksouls1)