At first Klaus thinks that's in response to the music, but then they quickly realize that's in response to not knowing how to use a knife. So all the defensive hackles settle back down and he looks over. "Knives were more Diego's thing. I was just ghosts and dying over and over." There's a shrug at that as he waves it off. Totally not important. "Like, sure I killed a guy with my hands once, but that was also an accident." Right right. Don't overshare. Uhhhh....something different. Right. Knives.

They look over, watching the stab and glad that it's not them getting stabbed. The ghosts are whatever. They kind of ruined so much before. So he's kind of aware of the hesitation, but he's gonna act like he's not. That seems like the correct move here.

"Oh. Really?" They smile. "Yeah. Totally, buddy. Would totally be down to learn knives well. I live for the look on Diego's face if he ever shows up and I can actually fight with knives for a change. And of course I'm serious about the songs. I never joke about karaoke."