Zandayi Simin seems to pick up on the fact that Darius desperately wants to know everything there is to know about the Iranian contingency of his family. However, Darius remains unable to voice his questions, something the novel attributes to his difficulty trusting that people are going to take what he has to say seriously. Sohrab saves the day by bringing up what seems to be a funny story: an
aftabeh looks like a watering can, but it’s used like a bidet after using the toilet. This breaks up the tension and, presumably, helps Darius see that Babou is human, just like he is.