Don keeps a firm grip on the staff as Korra examines it. He trusts her if Raph does, but he's not about to hand her a weapon.

Raph's opinions on the relative merits of bo and sai aren't enough to distract him from this, but Korra's statement is. A bo that turns into a glider? How has this never occurred to him before?

"I will make bo-gliders for a cup of coffee and a punch in the face," he says, though he might reconsider that offer after he gets over his initial excitement. It turns out that money is somewhat important to life in Keeliai, after all.