Rick Riordan said this quote

THAT'S IT! Terminus cried. That's AGAINST THE RULES!Polybotes frowned, obviously confused that he was being told off by a statue. What are you? he growled. Shut up!He pushed the statue over and turned back to Percy.Now I'm MAD! Terminus shrieked. I'm strangling you. Feel that? Those are my hands around your neck, you big bully. Get over here! I'm going to head-butt you so hard--