Wait a moment, Kristoff. Your mind is about to get blown even more.

The banging of head on wall was loud enough to catch said turtle's attention; frowning, he stood up and walked over. It was all too obvious this guy, whoever he was, was new.

"You...might not want to do that," He spoke up. "The Capitol might make you wear a safety helmet if you do too much damage."

In short - yes, the turtle just talked.