[He shouldn't be surprised to hear that Trunks is interested in swordplay, especially with the older Trunks running around being such a cool swordsman. Trunks should probably get a training sword before he gets a real one, though. But surely other, more knowledgeable people will tell him that! So instead he'll just talk to Trunks about swords.]

Interested in swords, huh? You'd really think the sword I was training with to prep for the big battle with Buu was awesome, then.