Because it's funny! I used to do it all the time. But your hair has way more zap to it than mine ever did.... [It's worrying that Mabel can even tell how's he feeling. Normally Killua's so cool and confident-- not being able to cover up how sad he is means this isn't just bad. It's giant evil robots, evil triangles, all glitter is banned forever levels of bad.

Obviously she needs to be as distracting and whimsical as possible.]

Good idea! Otherwise it's gonna melt and that would suck since I didn't bring any straws.