What can we infer about Mrs. Washington from the following quote?

The woman said, “Um-hum! You thought I was going to say but, didn’t you? You thought I was going to say, but I didn’t snatch people’s pocketbooks. Well, I wasn’t going to say that.” Pause. Silence. “I have done things, too, which I would not tell you, son — neither tell God, if he didn’t already know. So you set down while I fix us something to eat. You might run that comb through your hair so you will look presentable.”