If Kaz burnt off his eyebrows, I'd be there in a heartbeat to mourn them and what was once a very expressively handsome face.

[ Inej ensures to sigh heavily as she clucks her tongue in sadness. Kaz without his eyebrows would be a ghastly sight for them all. How would they know if he's teasing them then? ]

Nina and I value keeping our hair and eyebrows. Can you imagine Nina without hers?

[ Wylan makes a point of shuddering audibly, although his smile is clear in the warmth of his voice. ] I don't even want to consider it. [ He rushes to add: ] Not that I don't think she'd still look lovely! It's Nina; she's always quite well-dressed and groomed. It's just…

Nina's Nina and she's very passionate about her eyebrows?

I'd assume it's nothing on the same scale as waffles, but I wouldn't dare wish to find out. I wouldn't get too close to that, Kaz.