When Amon takes away the bending of Lightning Bolt Zolt, Zolt swings at the air in a failed attempt of fire bending in the same way Fire Lord Ozai did after Aang took away his bending and says the exact same lines.
Korra: What's the big idea with making me train this early in the morning? (whispers) The morning is evil.
Bolin: We're the rookies, so we get the worse time slot in the gym.
Mako: And You're the rookiest of us all.