You have never tasted BRIE and CAMEMBERT. Delicate creamy soft cheeses. Quite delicious UNLESS they are long past their use by date after which they become terrible. They stink to high heaven.
So someone tastes a spoiled one and having nothing with which to compare it? They never try either cheese again.
First time someone eats "lamb". It is old MUTTON and tough. Not young spring lamb. Never again will he/she eat lamb. Bad memory of it being the only memory.
You meet someone who is bipolar. On the high end. Outgoing delightful enjoyable. You meet again on the low end and don't recognize the person at all. Combative insulting. Out of the blue. It comes over them and it is not done intentionally. But unless you know that or guess it you avoid that person foreverly. Knowing always helps. Not knowing never does. DUH!
You prepare stewing beef as you would filet mignon! It is inedible. Very tough very stringy very awful. You have to know what you are dealing with to do it justice.
The state of being of what you encounter will determine how you react. Which brings me to the point.
How do you present yourself to others? Always the same? Never the same? Always amenable? Always confrontational?