What The Function?!

(I’m in grade 11 and am talking about school with my older sister, who has graduated high school and is in college. My sister got… not ideal grades in high school, while I have done quite well.)

Sister: “High school is useless.”

Me: “No, it’s not!”

Sister: “It’s completely useless.”

Me: “Grades are important!”

Sister: “No, they aren’t.”

Me: “They are for getting into college.”

Sister: “I had terrible grades, and I wasn’t rejected from anywhere I applied to.”

Me: “Yeah, well, what if I go into a math field? Then my math grades will matter.”

Sister: “Eww, why would you want to subject yourself to that?”

Me: “I don’t know. Math can be fun.”

Sister: *dramatic gasp* “Ah!” *holds out her fingers like a cross* “Get away from me, you demon!”

Me: “What the—”

Sister: *runs into our grandparents’ apartment*

Me: *follows her* “[Sister], what are you doing?”

Sister: “Ah!” *hides behind grandma* “[My Name] said math was the F-word!”

Grandma: “What!?”

Me: “I said fun. I said math can be fun.”