1. You refer as aunt and uncle (tía and tío) to people who are not related to you.
Why? Well, who knows why, but for Spanish people tío or tía, which literally mean uncle and aunt, is the equivalent of the English “dude.”
2. You think if you have dinner before 9 pm you will wake up hungry in the middle of the night.
How are all those people from the rest of the world able to be so many hours without eating? It will always be a mystery for you.