There's also a brilliant sight gag she provides during the doll side-quest. In fact, this whole sequence during the Fidget doll quest is just a series of greatly delivered funny lines stacked on top of one another.
Dust's attempts at getting Matti to talk. It starts off badly and gets progressively more wrong. And you earn an Achievement for it!
On one of Reed's dialogue after completing all of his side-quests, he wants Dust to destroy all the toothbrushes before they conspire to destroy the village after getting advice from the sun.
It's also even funnier when you consider how much of a jerk Gianni is to the heroes and how he abandons Corbin, the young boy who he first sent to do his laundry, out alone in the Ivydale Glen. Basically, our heroes are guiding karma to teach Gianni a lesson.
Glop, the senile old man in Mudpot, has his moments of funny dialogue when asking the heroes to get his "hittin' stick", find some trolk fingers and some rock-hound teeth.
Going to the room where Tim is hidden yields a pretty funny and playful Take That at Braid and all it's endless symbolism and hidden meanings:
Fidget: "Well, that made absolutely no sense."
Dust: "Every moment has a purpose, Fidget. You just have to dig deeper!"