"should not" doesn't always mean judgement; it speaks of probability: "A cat should not have five legs". Or to speak to human emotions: "Your partner cheated on

"should not" doesn't always mean judgement; it speaks of probability: "A cat should not have five legs". Or to speak to human emotions: "Your partner cheated on 5 out of their last 10 partners. You should not be stunned that they cheated on you". Also, in your poetic musings on the human condition and the validity of emotions, I think you're confusing being upset with being stunned. We can be upset at something, even if we shouldn't be surprised it happened.