Angua has this weak spot: if I say something, humm, off color, it baits her into a response. For instance, check the bannannaanna comment further up on this thread, and then Angua's threat of heinous retribution.
Weeelll, I've noticed that it irks her to no end if I just agree with her, accept my punishment, and make a little unhappy face.
/cackle!
Course, I'll miss my banjo. I loved that thing. =(