What does Mrs. Parsons want from Winston in chapter 2 of 1984?

At the beginning of chapter two, Mrs. Parsons asks Winston if he can come and unblock her sink. Her husband is away and she is unable to do it herself. Despite that he hates using his hands, Mrs. Parsons's husband, Jim, is one of Winston's colleagues, and so he reluctantly agrees.
At the Parsons's house, it is revealed that children play a big part in identifying "unorthodoxy" in adults. The Parsons' children run around calling Winston a traitor and saying he is guilty of thought crimes. While it is only a game, Winston knows that in a few years the government will use them in helping them to identify even their own parents of crimes against the state. The mother already looks scared of what they could become and of how careful she will have to be in their presence.