List of normal things that somehow make Americans lose their sh*t (this will be continually updated as more items are discovered)

1. Sitting cross-legged
2. Taking off shoes
3. Fuel efficiency
4. Public Transport
5. Non-white people
6. Showering at night
7. A whole fish
8. Wearing a mask
9. A normal-sized pickup truck
10. Cities built before the 1920s
11. Walking

BONUS: List of normal things that make certain non-Americans lose their sh*t

1. Referring to "America" when you mean "USA" (Latin Americans)
2. Smiling (Russians)
3. Setting healthy personal boundaries (Chinese)
4. Speaking in French (French)