"You're going to get yourself in a lot of trouble if you think that way about every situation," the Doctor tell him sternly. "The phrase 'fighting does solve everything' gets used all the time, but that doesn't make it wrong."

Probably not something Sync wants to hear, but it needs to be said.

"You have to be careful--for both your sake and your dragon's." He thinks that last part might be what matters most.