Let's say that you've gotten the COVID-19 vaccine, and your best friend hasn't. Are you more of a "live and let live" sort of person who is cool with others making their own decisions while you make yours, or do you have to end the friendship?
There's some topics in life you should never talk about, religion, politics, and whether or not pineapple belongs on pizza.
All three of those topics get people seriously amped up. But there's nothing that gets the people in a fury more than a picture of pizza with some pineapple on it...