If I don't eat I get SUPER cranky or hangry. It's just the way it is.
Your father has learned to adjust. During your years you'll probably hear your Dad say something like "Hey babe...are you hungry?" or "When was the last time you ate?" This usually means I'm acting a little crazy or irrational.
Feel free to ask me the same questions if you think I'm acting hangry. I might not always react well initially, but I'll eventually be back to my sane self and will thank you for suggesting we stop by McDonalds.