In Inside Out there's the following dialogue (as quoted here from its IMDb page):
Anger: [seeing slices of pizza with only broccoli on top]
Anger: Congratulations San Francisco, you've ruined Pizza! First the Hawaiians, and now YOU!
I don't live in San Francisco or Hawaii, so I didn't understand the reference. Do people from San Francisco or Hawaii make pizza with ridiculous ingredients? Yes, pizza with only broccoli is... not pizza, I suppose you could find that type of 'pizza' in some places there, but he is refering to Hawaiians. Why?