" That's because we keep weapons in the attic, silly boy. Do you think this is the first time monsters have attacked our family?"
"Weapons," Frank grumbled. "Right. I've never handled weapons before."
Grandmother's nostrils flared. "Was that sarcasm, Fai Zhang?"
"Yes, Grandmother."
"Good. There may be hope for you yet. "

― Rick Riordan , The Son of Neptune (The Heroes of Olympus, #2)